aboutsummaryrefslogtreecommitdiffstats
path: root/libqpdf/qpdf/auto_job_help.hh
blob: cd594e9c25fcf060a6abd97a11fffd4aa13e97b8 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
//
// This file is automatically generated by generate_auto_job.
// Edits will be automatically overwritten if the build is
// run in maintainer mode.
//
// clang-format off
//
static void add_help_1(QPDFArgParser& ap)
{
ap.addHelpTopic("usage", "basic invocation", R"(Read a PDF file, apply transformations or modifications, and write
a new PDF file.

Usage: qpdf [infile] [options] [outfile]
   OR  qpdf --help[={topic|--option}]

- infile, options, and outfile may be in any order as long as infile
  precedes outfile.
- Use --empty in place of an input file for a zero-page, empty input
- Use --replace-input in place of an output file to overwrite the
  input file with the output
- outfile may be - to write to stdout; reading from stdin is not supported
- @filename is an argument file; each line is treated as a separate
  command-line argument
- @- may be used to read arguments from stdin
- Later options may override earlier options if contradictory
)");
ap.addOptionHelp("--empty", "usage", "use empty file as input", R"(Use in place of infile for an empty input. Especially useful
with --pages.
)");
ap.addOptionHelp("--replace-input", "usage", "overwrite input with output", R"(Use in place of outfile to overwrite the input file with the output.
)");
ap.addOptionHelp("--job-json-file", "usage", "job JSON file", R"(--job-json-file=file

Specify the name of a file whose contents are expected to
contain a QPDFJob JSON file. Run qpdf --job-json-help for a
description of the JSON input file format.
)");
ap.addHelpTopic("exit-status", "meanings of qpdf's exit codes", R"(Meaning of exit codes:

- 0: no errors or warnings
- 1: not used by qpdf but may be used by the shell if unable to invoke qpdf
- 2: errors detected
- 3: warnings detected, unless --warning-exit-0 is given
)");
ap.addOptionHelp("--warning-exit-0", "exit-status", "exit 0 even with warnings", R"(Use exit status 0 instead of 3 when warnings are present. When
combined with --no-warn, warnings are completely ignored.
)");
ap.addHelpTopic("completion", "shell completion", R"(Shell completion is supported with bash and zsh. Use
eval $(qpdf --completion-bash) or eval $(qpdf --completion-zsh)
to enable. The QPDF_EXECUTABLE environment variable overrides the
path to qpdf that these commands output.
)");
ap.addOptionHelp("--completion-bash", "completion", "enable bash completion", R"(Output a command that enables bash completion
)");
ap.addOptionHelp("--completion-zsh", "completion", "enable zsh completion", R"(Output a command that enables zsh completion
)");
ap.addHelpTopic("help", "information about qpdf", R"(Help options provide some information about qpdf itself. Help
options are only valid as the first and only command-line argument.
)");
ap.addOptionHelp("--help", "help", "provide help", R"(--help[=--option|topic]

--help: provide general information and a list of topics
--help=--option: provide help on a specific option
--help=topic: provide help on a topic
)");
ap.addOptionHelp("--version", "help", "show qpdf version", R"(Display the version of qpdf.
)");
ap.addOptionHelp("--copyright", "help", "show copyright information", R"(Display copyright and license information.
)");
ap.addOptionHelp("--show-crypto", "help", "show available crypto providers", R"(Show a list of available crypto providers, one per line. The
default provider is shown first.
)");
ap.addOptionHelp("--job-json-help", "help", "show format of job JSON", R"(Describe the format of the QPDFJob JSON input used by
--job-json-file.
)");
ap.addHelpTopic("general", "general options", R"(General options control qpdf's behavior in ways that are not
directly related to the operation it is performing.
)");
ap.addOptionHelp("--password", "general", "password for encrypted file", R"(--password=password

Specify a password for an encrypted, password-protected file.
Not needed for encrypted files without a password.
)");
ap.addOptionHelp("--password-file", "general", "read password from a file", R"(--password-file=filename

The first line of the specified file is used as the password.
This is used in place of the --password option.
)");
ap.addOptionHelp("--verbose", "general", "print additional information", R"(Output additional information about various things qpdf is
doing, including information about files created and operations
performed.
)");
}
static void add_help_2(QPDFArgParser& ap)
{
ap.addOptionHelp("--progress", "general", "show progress when writing", R"(Indicate progress when writing files.
)");
ap.addOptionHelp("--no-warn", "general", "suppress printing of warning messages", R"(Suppress printing of warning messages. If warnings were
encountered, qpdf still exits with exit status 3.
Use --warning-exit-0 with --no-warn to completely ignore
warnings.
)");
ap.addOptionHelp("--deterministic-id", "general", "generate ID deterministically", R"(Generate a secure, random document ID only using static
information, such as the page contents. Does not use the file's
name or attributes or the current time.
)");
ap.addOptionHelp("--allow-weak-crypto", "general", "allow insecure cryptographic algorithms", R"(Allow creation of files with weak cryptographic algorithms. This
option is necessary to create 40-bit files or 128-bit files that
use RC4 encryption.
)");
ap.addOptionHelp("--keep-files-open", "general", "manage keeping multiple files open", R"(--keep-files-open=[y|n]

When qpdf needs to work with many files, as when merging large
numbers of files, explicitly indicate whether files should be
kept open. The default behavior is to determine this based on
the number of files.
)");
ap.addOptionHelp("--keep-files-open-threshold", "general", "set threshold for --keep-files-open", R"(--keep-files-open-threshold=count

Set the threshold used by --keep-files-open, overriding the
default value of 200.
)");
ap.addHelpTopic("advanced-control", "tweak qpdf's behavior", R"(Advanced control options control qpdf's behavior in ways that would
normally never be needed by a user but that may be useful to
developers or people investigating problems with specific files.
)");
ap.addOptionHelp("--password-is-hex-key", "advanced-control", "provide hex-encoded encryption key", R"(Provide the underlying file encryption key as a hex-encoded
string rather than supplying a password. This is an expert
option.
)");
ap.addOptionHelp("--suppress-password-recovery", "advanced-control", "don't try different password encodings", R"(Suppress qpdf's usual behavior of attempting different encodings
of a password that contains non-ASCII Unicode characters if the
first attempt doesn't succeed.
)");
ap.addOptionHelp("--password-mode", "advanced-control", "tweak how qpdf encodes passwords", R"(--password-mode=mode

Fine-tune how qpdf controls encoding of Unicode passwords. Valid
options are auto, bytes, hex-bytes, and unicode.
)");
ap.addOptionHelp("--suppress-recovery", "advanced-control", "suppress error recovery", R"(Avoid attempting to recover when errors are found in a file's
cross reference table or stream lengths.
)");
ap.addOptionHelp("--ignore-xref-streams", "advanced-control", "use xref tables rather than streams", R"(Ignore any cross-reference streams in the file, falling back to
cross-reference tables or triggering document recovery.
)");
ap.addHelpTopic("transformation", "make structural PDF changes", R"(The options below tell qpdf to apply transformations that change
the structure without changing the content.
)");
ap.addOptionHelp("--linearize", "transformation", "linearize (web-optimize) output", R"(Create linearized (web-optimized) output files.
)");
ap.addOptionHelp("--encrypt", "transformation", "start encryption options", R"(--encrypt [options] --

Run qpdf --help=encryption for details.
)");
ap.addOptionHelp("--decrypt", "transformation", "remove encryption from input file", R"(Create an unencrypted output file even if the input file was
encrypted. Normally qpdf preserves whatever encryption was
present on the input file. This option overrides that behavior.
)");
ap.addOptionHelp("--remove-restrictions", "transformation", "remove security restrictions from input file", R"(Remove restrictions associated with digitally signed PDF files.
This may be combined with --decrypt to allow free editing of
previously signed/encrypted files. This option invalidates and
disables any digital signatures but leaves their visual
appearances intact.
)");
ap.addOptionHelp("--copy-encryption", "transformation", "copy another file's encryption details", R"(--copy-encryption=file

Copy encryption details from the specified file instead of
preserving the input file's encryption. Use --encryption-file-password
to specify the encryption file's password.
)");
ap.addOptionHelp("--encryption-file-password", "transformation", "supply password for --copy-encryption", R"(--encryption-file-password=password

If the file named in --copy-encryption requires a password, use
this option to supply the password.
)");
}
static void add_help_3(QPDFArgParser& ap)
{
ap.addOptionHelp("--qdf", "transformation", "enable viewing PDF code in a text editor", R"(Create a PDF file suitable for viewing in a text editor and even
editing. This is for editing the PDF code, not the page contents.
All streams that can be uncompressed are uncompressed, and
content streams are normalized, among other changes. The
companion tool "fix-qdf" can be used to repair hand-edited QDF
files. QDF is a feature specific to the qpdf tool. Please see
the "QDF Mode" chapter in the manual.
)");
ap.addOptionHelp("--no-original-object-ids", "transformation", "omit original object IDs in qdf", R"(Omit comments in a QDF file indicating the object ID an object
had in the original file.
)");
ap.addOptionHelp("--compress-streams", "transformation", "compress uncompressed streams", R"(--compress-streams=[y|n]

Setting --compress-streams=n prevents qpdf from compressing
uncompressed streams. This can be useful if you are leaving some
streams uncompressed intentionally.
)");
ap.addOptionHelp("--decode-level", "transformation", "control which streams to uncompress", R"(--decode-level=parameter

When uncompressing streams, control which types of compression
schemes should be uncompressed:
- none: don't uncompress anything. This is the default with
  --json-output.
- generalized: uncompress streams compressed with a
  general-purpose compression algorithm. This is the default
  except when --json-output is given.
- specialized: in addition to generalized, also uncompress
  streams compressed with a special-purpose but non-lossy
  compression scheme
- all: in addition to specialized, uncompress streams compressed
  with lossy compression schemes like JPEG (DCT)
qpdf does not know how to uncompress all compression schemes.
)");
ap.addOptionHelp("--stream-data", "transformation", "control stream compression", R"(--stream-data=parameter

This option controls how streams are compressed in the output.
It is less granular than the newer options, --compress-streams
and --decode-level.

Parameters:
- compress: same as --compress-streams=y --decode-level=generalized
- preserve: same as --compress-streams=n --decode-level=none
- uncompress: same as --compress-streams=n --decode-level=generalized
)");
ap.addOptionHelp("--recompress-flate", "transformation", "uncompress and recompress flate", R"(The default generalized compression scheme used by PDF is flate,
which is the same as used by zip and gzip. Usually qpdf just
leaves these alone. This option tells qpdf to uncompress and
recompress streams compressed with flate. This can be useful
when combined with --compression-level.
)");
ap.addOptionHelp("--compression-level", "transformation", "set compression level for flate", R"(--compression-level=level

Set a compression level from 1 (least, fastest) to 9 (most,
slowest) when compressing files with flate (used in zip and
gzip), which is the default compression for most PDF files.
You need --recompress-flate with this option if you want to
change already compressed streams.
)");
ap.addOptionHelp("--normalize-content", "transformation", "fix newlines in content streams", R"(--normalize-content=[y|n]

Normalize newlines to UNIX-style newlines in PDF content
streams, which is useful for viewing them in a programmer's text
editor across multiple platforms. This is also turned on by
--qdf.
)");
ap.addOptionHelp("--object-streams", "transformation", "control use of object streams", R"(--object-streams=mode

Control what qpdf does regarding object streams. Options:
- preserve: preserve original object streams, if any (the default)
- disable: create output files with no object streams
- generate: create object streams, and compress objects when possible
)");
ap.addOptionHelp("--preserve-unreferenced", "transformation", "preserve unreferenced objects", R"(Preserve all objects from the input even if not referenced.
)");
ap.addOptionHelp("--remove-unreferenced-resources", "transformation", "remove unreferenced page resources", R"(--remove-unreferenced-resources=parameter

Remove from a page's resource dictionary any resources that are
not referenced in the page's contents. Parameters: "auto"
(default), "yes", "no".
)");
ap.addOptionHelp("--preserve-unreferenced-resources", "transformation", "use --remove-unreferenced-resources=no", R"(Synonym for --remove-unreferenced-resources=no. Use that instead.
)");
ap.addOptionHelp("--newline-before-endstream", "transformation", "force a newline before endstream", R"(For an extra newline before endstream. Using this option enables
qpdf to preserve PDF/A when rewriting such files.
)");
ap.addOptionHelp("--coalesce-contents", "transformation", "combine content streams", R"(If a page has an array of content streams, concatenate them into
a single content stream.
)");
ap.addOptionHelp("--externalize-inline-images", "transformation", "convert inline to regular images", R"(Convert inline images to regular images.
)");
ap.addOptionHelp("--ii-min-bytes", "transformation", "set minimum size for --externalize-inline-images", R"(--ii-min-bytes=size-in-bytes

Don't externalize inline images smaller than this size. The
default is 1,024. Use 0 for no minimum.
)");
ap.addOptionHelp("--min-version", "transformation", "set minimum PDF version", R"(--min-version=version

Force the PDF version of the output to be at least the specified
version. The version number format is
"major.minor[.extension-level]", which sets the version header
to "major.minor" and the extension level, if specified, to
"extension-level".
)");
ap.addOptionHelp("--force-version", "transformation", "set output PDF version", R"(--force-version=version

Force the output PDF file's PDF version header to be the specified
value, even if the file uses features that may not be available
in that version.
)");
ap.addHelpTopic("page-ranges", "page range syntax", R"(A full description of the page range syntax, with examples, can be
found in the manual. In summary, a range is a comma-separated list
of groups. A group is a number or a range of numbers separated by a
dash. A group may be prepended by x to exclude its members from the
previous group. A number may be one of

- <n>        where <n> represents a number is the <n>th page
- r<n>       is the <n>th page from the end
- z          the last page, same as r1

- a,b,c      pages a, b, and c
- a-b        pages a through b inclusive; if a > b, this counts down
- a-b,xc     pages a through b except page c
- a-b,xc-d   pages a through b except pages c through d

You can append :even or :odd to select every other page from the
resulting set of pages, where :odd starts with the first page and
:even starts with the second page. These are odd and even pages
from the resulting set, not based on the original page numbers.
)");
}
static void add_help_4(QPDFArgParser& ap)
{
ap.addHelpTopic("modification", "change parts of the PDF", R"(Modification options make systematic changes to certain parts of
the PDF, causing the PDF to render differently from the original.
)");
ap.addOptionHelp("--pages", "modification", "begin page selection", R"(--pages [--file=]file [options] [...] --

Run qpdf --help=page-selection for details.
)");
ap.addOptionHelp("--file", "modification", "source for pages", R"(--file=file

Specify the file for the current page operation. This is used
with --pages, --overlay, and --underlay and appears between the
option and the terminating --. Run qpdf --help=page-selection
for details.
)");
ap.addOptionHelp("--range", "modification", "page range", R"(--range=numeric-range

Specify the page range for the current page operation with
--pages. If omitted, all pages are selected. This is used
with --pages and appears between --pages and --. Run
qpdf --help=page-selection for details.
)");
ap.addOptionHelp("--collate", "modification", "collate with --pages", R"(--collate[=n[,m,...]]

Collate rather than concatenate pages specified with --pages.
With a numeric parameter, collate in groups of n. The default
is 1. With comma-separated numeric parameters, take n from the
first file, m from the second, etc. Run
qpdf --help=page-selection for additional details.
)");
ap.addOptionHelp("--split-pages", "modification", "write pages to separate files", R"(--split-pages[=n]

This option causes qpdf to create separate output files for each
page or group of pages rather than a single output file.

File names are generated from the specified output file as follows:

- If the string %d appears in the output file name, it is replaced with a
  zero-padded page range starting from 1
- Otherwise, if the output file name ends in .pdf (case insensitive), a
  zero-padded page range, preceded by a dash, is inserted before the file
  extension
- Otherwise, the file name is appended with a zero-padded page range
  preceded by a dash.

Page ranges are single page numbers for single-page groups or first-last
for multi-page groups.
)");
ap.addOptionHelp("--overlay", "modification", "begin overlay options", R"(--overlay file [options] --

Overlay pages from another file on the output.
Run qpdf --help=overlay-underlay for details.
)");
ap.addOptionHelp("--underlay", "modification", "begin underlay options", R"(--underlay file [options] --

Underlay pages from another file on the output.
Run qpdf --help=overlay-underlay for details.
)");
ap.addOptionHelp("--flatten-rotation", "modification", "remove rotation from page dictionary", R"(For each page that is rotated using the /Rotate key in the
page's dictionary, remove the /Rotate key and implement the
identical rotation semantics by modifying the page's contents.
This can be useful if a broken PDF viewer fails to properly
consider page rotation metadata.
)");
ap.addOptionHelp("--flatten-annotations", "modification", "push annotations into content", R"(--flatten-annotations=parameter

Push page annotations into the content streams. This may be
necessary in some case when printing or splitting files.
Parameters: "all", "print", "screen".
)");
ap.addOptionHelp("--rotate", "modification", "rotate pages", R"(--rotate=[+|-]angle[:page-range]

Rotate specified pages by multiples of 90 degrees specifying
either absolute or relative angles. "angle" may be 0, 90, 180,
or 270. You almost always want to use +angle or -angle rather
than just angle, as discussed in the manual. Run
qpdf --help=page-ranges for help with page ranges.
)");
ap.addOptionHelp("--generate-appearances", "modification", "generate appearances for form fields", R"(PDF form fields consist of values and appearances, which may be
inconsistent with each other if a form field value has been
modified without updating its appearance. This option tells qpdf
to generate new appearance streams. There are some limitations,
which are discussed in the manual.
)");
ap.addOptionHelp("--optimize-images", "modification", "use efficient compression for images", R"(Attempt to use DCT (JPEG) compression for images that fall
within certain constraints as long as doing so decreases the
size in bytes of the image. See also help for the following
options:
  --oi-min-width
  --oi-min-height
  --oi-min-area
  --keep-inline-images
)");
ap.addOptionHelp("--oi-min-width", "modification", "minimum width for --optimize-images", R"(--oi-min-width=width

Don't optimize images whose width is below the specified value.
)");
ap.addOptionHelp("--oi-min-height", "modification", "minimum height for --optimize-images", R"(--oi-min-height=height

Don't optimize images whose height is below the specified value.
)");
ap.addOptionHelp("--oi-min-area", "modification", "minimum area for --optimize-images", R"(--oi-min-area=area-in-pixels

Don't optimize images whose area in pixels is below the specified value.
)");
ap.addOptionHelp("--keep-inline-images", "modification", "exclude inline images from optimization", R"(Prevent inline images from being considered by --optimize-images.
)");
ap.addOptionHelp("--remove-page-labels", "modification", "remove explicit page numbers", R"(Exclude page labels (explicit page numbers) from the output file.
)");
ap.addOptionHelp("--set-page-labels", "modification", "number pages for the entire document", R"(--set-page-labels label-spec ... --

Set page labels (explicit page numbers) for the entire file.
Each label-spec has the form

first-page:[type][/start[/prefix]]

where

- "first-page" represents a sequential page number using the
  same format as page ranges: a number, a number preceded by "r"
  to indicate counting from the end, or "z" indicating the last
  page
- "type" is one of
  - D: Arabic numerals (digits)
  - A: Upper-case alphabetic characters
  - a: Lower-case alphabetic characters
  - R: Upper-case Roman numerals
  - r: Lower-case Roman numerals
  - omitted: the page number does not appear, though the prefix,
    if specified will still appear
- "prefix"` may be any string and is prepended to each page
  label

A given page label spec causes pages to be numbered according to
that scheme starting with first-page and continuing until the
next label spec or the end of the document. If you want to omit
numbering starting at a certain page, you can use first-page: as
the spec.

Example: "1:r 5:D" would number the first four pages i through
iv, then the remaining pages with Arabic numerals starting with
1 and continuing sequentially until the end of the document. For
additional examples, please consult the manual.
)");
}
static void add_help_5(QPDFArgParser& ap)
{
ap.addHelpTopic("encryption", "create encrypted files", R"(Create encrypted files. Usage:

--encrypt \
  [--user-password=user-password] \
  [--owner-password=owner-password] \
  --bits=key-length [options] --

OR

--encrypt user-password owner-password key-length [options] --

The first form, with flags for the passwords and bit length, was
introduced in qpdf 11.7.0. Only the --bits option is is mandatory.
This form allows you to use any text as the password. If passwords
are specified, they must be given before the --bits option.

The second form has been in qpdf since the beginning and wil
continue to be supported. Either or both of user-password and
owner-password may be empty strings.

The key-length parameter must be either 40, 128, or 256. The user
and/or owner password may be omitted. Omitting either password
enables the PDF file to be opened without a password. Specifying
the same value for the user and owner password and specifying an
empty owner password are both considered insecure.

Encryption options are terminated by "--" by itself.

40-bit encryption is insecure, as is 128-bit encryption without
AES. Use 256-bit encryption unless you have a specific reason to
use an insecure format, such as testing or compatibility with very
old viewers. You must use the --allow-weak-crypto to create
encrypted files that use insecure cryptographic algorithms. The
--allow-weak-crypto flag appears outside of --encrypt ... --
(before --encrypt or after --).

Available options vary by key length. Not all readers respect all
restrictions. Different PDF readers respond differently to various
combinations of options. Sometimes a PDF viewer may show you
restrictions that differ from what you selected. This is probably
not a bug in qpdf.

Options for 40-bit only:
  --annotate=[y|n]         restrict comments, filling forms, and signing
  --extract=[y|n]          restrict text/graphic extraction
  --modify=[y|n]           restrict document modification
  --print=[y|n]            restrict printing

Options for 128-bit or 256-bit:
  --accessibility=[y|n]    restrict accessibility (usually ignored)
  --annotate=[y|n]         restrict commenting/filling form fields
  --assemble=[y|n]         restrict document assembly
  --extract=[y|n]          restrict text/graphic extraction
  --form=[y|n]             restrict filling form fields
  --modify-other=[y|n]     restrict other modifications
  --modify=modify-opt      control modify access by level
  --print=print-opt        control printing access
  --cleartext-metadata     prevent encryption of metadata

For 128-bit only:
  --use-aes=[y|n]          indicates whether to use AES encryption
  --force-V4               forces use of V=4 encryption handler

For 256-bit only:
  --force-R5               forces use of deprecated R=5 encryption
  --allow-insecure         allow user password with empty owner password

Values for print-opt:
  none                     disallow printing
  low                      allow only low-resolution printing
  full                     allow full printing

Values for modify-opt:
  none                     allow no modifications
  assembly                 allow document assembly only
  form                     assembly + filling in form fields and signing
  annotate                 form + commenting and modifying forms
  all                      allow full document modification
)");
ap.addOptionHelp("--user-password", "encryption", "specify user password", R"(--user-password=user-password

Set the user password of the encrypted file.
)");
ap.addOptionHelp("--owner-password", "encryption", "specify owner password", R"(--owner-password=owner-password

Set the owner password of the encrypted file.
)");
ap.addOptionHelp("--bits", "encryption", "specify encryption key length", R"(--bits={48|128|256}

Specify the encryption key length. For best security, always use
a key length of 256.
)");
ap.addOptionHelp("--accessibility", "encryption", "restrict document accessibility", R"(--accessibility=[y|n]

This option is ignored except with very old encryption formats.
The current PDF specification does not allow restriction of
document accessibility. This option is not available with 40-bit
encryption.
)");
ap.addOptionHelp("--annotate", "encryption", "restrict document annotation", R"(--annotate=[y|n]

Enable/disable modifying annotations including making comments
and filling in form fields. For 128-bit and 256-bit encryption,
this also enables editing, creating, and deleting form fields
unless --modify-other=n or --modify=none is also specified.
)");
ap.addOptionHelp("--assemble", "encryption", "restrict document assembly", R"(--assemble=[y|n]

Enable/disable document assembly (rotation and reordering of
pages). This option is not available with 40-bit encryption.
)");
ap.addOptionHelp("--extract", "encryption", "restrict text/graphic extraction", R"(--extract=[y|n]

Enable/disable text/graphic extraction for purposes other than
accessibility.
)");
ap.addOptionHelp("--form", "encryption", "restrict form filling", R"(--form=[y|n]

Enable/disable whether filling form fields is allowed even if
modification of annotations is disabled. This option is not
available with 40-bit encryption.
)");
ap.addOptionHelp("--modify-other", "encryption", "restrict other modifications", R"(--modify-other=[y|n]

Enable/disable modifications not controlled by --assemble,
--annotate, or --form. --modify-other=n is implied by any of the
other --modify options. This option is not available with 40-bit
encryption.
)");
ap.addOptionHelp("--modify", "encryption", "restrict document modification", R"(--modify=modify-opt

For 40-bit files, modify-opt may only be y or n and controls all
aspects of document modification.

For 128-bit and 256-bit encryption, modify-opt values allow
enabling and disabling levels of restriction in a manner similar
to how some PDF creation tools do it. modify-opt values map to
other combinations of options as follows:

all: allow full modification (the default)
annotate: --modify-other=n
form: --modify-other=n --annotate=n
assembly: --modify-other=n --annotate=n --form=n
none: --modify-other=n --annotate=n --form=n --assemble=n
)");
ap.addOptionHelp("--print", "encryption", "restrict printing", R"(--print=print-opt

Control what kind of printing is allowed. For 40-bit encryption,
print-opt may only be y or n and enables or disables all
printing. For 128-bit and 256-bit encryption, print-opt may have
the following values:

none: disallow printing
low: allow low-resolution printing only
full: allow full printing (the default)
)");
ap.addOptionHelp("--cleartext-metadata", "encryption", "don't encrypt metadata", R"(If specified, don't encrypt document metadata even when
encrypting the rest of the document. This option is not
available with 40-bit encryption.
)");
ap.addOptionHelp("--use-aes", "encryption", "use AES with 128-bit encryption", R"(--use-aes=[y|n]

Enables/disables use of the more secure AES encryption with
128-bit encryption. Specifying --use-aes=y forces the PDF
version to be at least 1.6. This option is only available with
128-bit encryption. The default is "n" for compatibility
reasons. Use 256-bit encryption instead.
)");
ap.addOptionHelp("--allow-insecure", "encryption", "allow empty owner passwords", R"(Allow creation of PDF files with empty owner passwords and
non-empty user passwords when using 256-bit encryption.
)");
ap.addOptionHelp("--force-V4", "encryption", "force V=4 in encryption dictionary", R"(This option is for testing and is never needed in practice since
qpdf does this automatically when needed.
)");
ap.addOptionHelp("--force-R5", "encryption", "use unsupported R=5 encryption", R"(Use an undocumented, unsupported, deprecated encryption
algorithm that existed only in Acrobat version IX. This option
should not be used except for compatibility testing.
)");
ap.addHelpTopic("page-selection", "select pages from one or more files", R"(Use the --pages option to select pages from multiple files. Usage:

qpdf in.pdf --pages --file=input-file \
    [--range=page-range] [--password=password] [...] -- out.pdf

OR

qpdf in.pdf --pages input-file [--password=password] [page-range] \
    [...] -- out.pdf

Between --pages and the -- that terminates pages option, repeat
the following:

--file=filename [--range=page-range] [--password=password] [options]

For compatibility, the file and range can be specified
positionally. qpdf versions prior to 11.9.0
require --password=password to immediately follow the filename. In
the older syntax, repeat the following:

filename [--password=password] [page-range]

Document-level information, such as outlines, tags, etc., is taken
from in.pdf and is preserved in out.pdf. You can use --empty in place
of an input file to start from an empty file and just copy pages
equally from all files. You can use "." as a shorthand for the
primary input file (if not --empty). In the above example, "."
would refer to in.pdf.

Use --password=password to specify the password for a
password-protected input file. If the same input file is used more
than once, you only need to supply the password the first time. If
the page range is omitted, all pages are selected.

Run qpdf --help=page-ranges for help with page ranges.

Use --collate=n to cause pages to be collated in groups of n pages
(default 1) instead of concatenating the input.
Use --collate=i,j,k,... to take i from the first, then j from the
second, then k from the third, then i from the first, etc.

Examples:

- Start with in.pdf and append all pages from a.pdf and the even
  pages from b.pdf, and write the output to out.pdf. Document-level
  information from in.pdf is retained. Note the use of "." to refer
  to in.pdf.

  qpdf in.pdf --pages . a.pdf b.pdf 1-z:even -- out.pdf

- Take all the pages from a.pdf, all the pages from b.pdf in
  reverse, and only pages 3 and 6 from c.pdf and write the result
  to out.pdf. Use password "x" to open b.pdf:

  qpdf --empty --pages a.pdf b.pdf --password=x z-1 c.pdf 3,6

More examples are in the manual.
)");
ap.addHelpTopic("overlay-underlay", "overlay/underlay pages from other files", R"(These options allow pages from another file to be overlaid or
underlaid on the primary output. Overlaid pages are drawn on top of
the destination page and may obscure the page. Underlaid pages are
drawn below the destination page. Usage:

{--overlay|--underlay} [--file=]file
      [--password=password]
      [--to=page-range]
      [--from=[page-range]]
      [--repeat=page-range]
      --

Note the use of "--" by itself to terminate overlay/underlay options.

For overlay and underlay, a file and optional password are specified, along
with a series of optional page ranges. The default behavior is that each
page of the overlay or underlay file is imposed on the corresponding page
of the primary output until it runs out of pages, and any extra pages are
ignored. You can also give a page range with --repeat to cause
those pages to be repeated after the original pages are exhausted.

This options are repeatable. Pages will be stacked in order of
appearance: first underlays, then the original page, then overlays.

Run qpdf --help=page-ranges for help with page ranges.
)");
}
static void add_help_6(QPDFArgParser& ap)
{
ap.addOptionHelp("--to", "overlay-underlay", "destination pages for underlay/overlay", R"(--to=page-range

Specify the range of pages in the primary output to apply
overlay/underlay to. See qpdf --help=page-ranges for help with
the page range syntax.
)");
ap.addOptionHelp("--from", "overlay-underlay", "source pages for underlay/overlay", R"(--from=[page-range]

Specify pages from the overlay/underlay file that are applied to
the destination pages. See qpdf --help=page-ranges for help
with the page range syntax. The page range may be omitted
if --repeat is used.
)");
ap.addOptionHelp("--repeat", "overlay-underlay", "overlay/underlay pages to repeat", R"(--repeat=page-range

Specify pages from the overlay/underlay that are repeated after
"from" pages have been exhausted. See qpdf --help=page-ranges
for help with the page range syntax.
)");
ap.addHelpTopic("attachments", "work with embedded files", R"(It is possible to list, add, or delete embedded files (also known
as attachments) and to copy attachments from other files. See help
on individual options for details. Run qpdf --help=add-attachment
for additional details about adding attachments. See also
--help=--list-attachments and --help=--show-attachment.
)");
ap.addOptionHelp("--add-attachment", "attachments", "start add attachment options", R"(--add-attachment file [options] --

The --add-attachment flag and its options may be repeated to add
multiple attachments. Run qpdf --help=add-attachment for details.
)");
ap.addOptionHelp("--copy-attachments-from", "attachments", "start copy attachment options", R"(--copy-attachments-from file [options] --

The --copy-attachments-from flag and its options may be repeated
to copy attachments from multiple files. Run
qpdf --help=copy-attachments for details.
)");
ap.addOptionHelp("--remove-attachment", "attachments", "remove an embedded file", R"(--remove-attachment=key

Remove an embedded file using its key. Get the key with
--list-attachments.
)");
ap.addHelpTopic("pdf-dates", "PDF date format", R"(When a date is required, the date should conform to the PDF date
format specification, which is "D:yyyymmddhhmmssz" where "z" is
either literally upper case "Z" for UTC or a timezone offset in
the form "-hh'mm'" or "+hh'mm'". Negative timezone offsets indicate
time before UTC. Positive offsets indicate how far after. For
example, US Eastern Standard Time (America/New_York) is "-05'00'",
and Indian Standard Time (Asia/Calcutta) is "+05'30'".

Examples:
- D:20210207161528-05'00'   February 7, 2021 at 4:15:28 p.m.
- D:20210207211528Z         February 7, 2021 at 21:15:28 UTC
)");
ap.addHelpTopic("add-attachment", "attach (embed) files", R"(The options listed below appear between --add-attachment and its
terminating "--".
)");
ap.addOptionHelp("--key", "add-attachment", "specify attachment key", R"(--key=key

Specify the key to use for the attachment in the embedded files
table. It defaults to the last element (basename) of the
attached file's filename.
)");
ap.addOptionHelp("--filename", "add-attachment", "set attachment's displayed filename", R"(--filename=name

Specify the filename to be used for the attachment. This is what
is usually displayed to the user and is the name most graphical
PDF viewers will use when saving a file. It defaults to the last
element (basename) of the attached file's filename.
)");
ap.addOptionHelp("--creationdate", "add-attachment", "set attachment's creation date", R"(--creationdate=date

Specify the attachment's creation date in PDF format; defaults
to the current time. Run qpdf --help=pdf-dates for information
about the date format.
)");
ap.addOptionHelp("--moddate", "add-attachment", "set attachment's modification date", R"(--moddate=date

Specify the attachment's modification date in PDF format;
defaults to the current time. Run qpdf --help=pdf-dates for
information about the date format.
)");
ap.addOptionHelp("--mimetype", "add-attachment", "attachment mime type, e.g. application/pdf", R"(--mimetype=type/subtype

Specify the mime type for the attachment, such as text/plain,
application/pdf, image/png, etc.
)");
ap.addOptionHelp("--description", "add-attachment", "set attachment's description", R"(--description="text"

Supply descriptive text for the attachment, displayed by some
PDF viewers.
)");
ap.addOptionHelp("--replace", "add-attachment", "replace attachment with same key", R"(Indicate that any existing attachment with the same key should
be replaced by the new attachment. Otherwise, qpdf gives an
error if an attachment with that key is already present.
)");
ap.addHelpTopic("copy-attachments", "copy attachments from another file", R"(The options listed below appear between --copy-attachments-from and
its terminating "--".

To copy attachments from a password-protected file, use
the --password option after the file name.
)");
ap.addOptionHelp("--prefix", "copy-attachments", "key prefix for copying attachments", R"(--prefix=prefix

Prepend a prefix to each key; may be needed if there are
duplicate attachment keys. This affects the key only, not the
file name.
)");
ap.addHelpTopic("inspection", "inspect PDF files", R"(These options provide tools for inspecting PDF files. When any of
the options in this section are specified, no output file may be
given.
)");
}
static void add_help_7(QPDFArgParser& ap)
{
ap.addOptionHelp("--is-encrypted", "inspection", "silently test whether a file is encrypted", R"(Silently exit with a code indicating the file's encryption status:

0: the file is encrypted
1: not used
2: the file is not encrypted

This can be used with password-protected files even if you don't
know the password.
)");
ap.addOptionHelp("--requires-password", "inspection", "silently test a file's password", R"(Silently exit with a code indicating the file's password status:

0: a password, other than as supplied, is required
1: not used
2: the file is not encrypted
3: the file is encrypted, and correct password (if any) has been supplied
)");
ap.addOptionHelp("--check", "inspection", "partially check whether PDF is valid", R"(Check the structure of the PDF file as well as a number of other
aspects of the file, and write information about the file to
standard output. Note that qpdf does not perform any validation
of the actual PDF page content or semantic correctness of the
PDF file. It merely checks that the PDF file is syntactically
valid. See also qpdf --help=exit-status.
)");
ap.addOptionHelp("--show-encryption", "inspection", "information about encrypted files", R"(Show document encryption parameters. Also show the document's
user password if the owner password is given and the file was
encrypted using older encryption formats that allow user
password recovery.
)");
ap.addOptionHelp("--show-encryption-key", "inspection", "show key with --show-encryption", R"(When used with --show-encryption or --check, causes the
underlying encryption key to be displayed.
)");
ap.addOptionHelp("--check-linearization", "inspection", "check linearization tables", R"(Check to see whether a file is linearized and, if so, whether
the linearization hint tables are correct.
)");
ap.addOptionHelp("--show-linearization", "inspection", "show linearization hint tables", R"(Check and display all data in the linearization hint tables.
)");
ap.addOptionHelp("--show-xref", "inspection", "show cross reference data", R"(Show the contents of the cross-reference table or stream (object
locations in the file) in a human-readable form. This is
especially useful for files with cross-reference streams, which
are stored in a binary format.
)");
ap.addOptionHelp("--show-object", "inspection", "show contents of an object", R"(--show-object={trailer|obj[,gen]}

Show the contents of the given object. This is especially useful
for inspecting objects that are inside of object streams (also
known as "compressed objects").
)");
ap.addOptionHelp("--raw-stream-data", "inspection", "show raw stream data", R"(When used with --show-object, if the object is a stream, write
the raw (compressed) binary stream data to standard output
instead of the object's contents. See also
--filtered-stream-data.
)");
ap.addOptionHelp("--filtered-stream-data", "inspection", "show filtered stream data", R"(When used with --show-object, if the object is a stream, write
the filtered (uncompressed, potentially binary) stream data to
standard output instead of the object's contents. See also
--raw-stream-data.
)");
ap.addOptionHelp("--show-npages", "inspection", "show number of pages", R"(Print the number of pages in the input file on a line by itself.
Useful for scripts.
)");
ap.addOptionHelp("--show-pages", "inspection", "display page dictionary information", R"(Show the object and generation number for each page dictionary
object and for each content stream associated with the page.
)");
ap.addOptionHelp("--with-images", "inspection", "include image details with --show-pages", R"(When used with --show-pages, also shows the object and
generation numbers for the image objects on each page.
)");
ap.addOptionHelp("--list-attachments", "inspection", "list embedded files", R"(Show the key and stream number for each embedded file. Combine
with --verbose for more detailed information.
)");
ap.addOptionHelp("--show-attachment", "inspection", "export an embedded file", R"(--show-attachment=key

Write the contents of the specified attachment to standard
output as binary data. Get the key with --list-attachments.
)");
ap.addHelpTopic("json", "JSON output for PDF information", R"(Show information about the PDF file in JSON format. Please see the
JSON chapter in the qpdf manual for details.
)");
ap.addOptionHelp("--json", "json", "show file in JSON format", R"(--json[=version]

Generate a JSON representation of the file. This is described in
depth in the JSON section of the manual. "version" may be a
specific version or "latest" (the default). Run qpdf --json-help
for a description of the generated JSON object.
)");
ap.addOptionHelp("--json-help", "json", "show format of JSON output", R"(--json-help[=version]

Describe the format of the JSON output by writing to standard
output a JSON object with the same keys and with values
containing descriptive text.
)");
}
static void add_help_8(QPDFArgParser& ap)
{
ap.addOptionHelp("--json-key", "json", "limit which keys are in JSON output", R"(--json-key=key

This option is repeatable. If given, only the specified
top-level keys will be included in the JSON output. Otherwise,
all keys will be included. With --json-output, when not given,
only the "qpdf" key will appear in the output.
)");
ap.addOptionHelp("--json-object", "json", "limit which objects are in JSON", R"(--json-object={trailer|obj[,gen]}

This option is repeatable. If given, only specified objects will
be shown in the "objects" key of the JSON output. Otherwise, all
objects will be shown.
)");
ap.addOptionHelp("--json-stream-data", "json", "how to handle streams in json output", R"(--json-stream-data={none|inline|file}

When used with --json, this option controls whether streams in
json output should be omitted, written inline (base64-encoded)
or written to a file. If "file" is chosen, the file will be the
name of the output file appended with -nnn where nnn is the
object number. The prefix can be overridden with
--json-stream-prefix. The default is "none", except
when --json-output is specified, in which case the default is
"inline".
)");
ap.addOptionHelp("--json-stream-prefix", "json", "prefix for json stream data files", R"(--json-stream-prefix=file-prefix

When used with --json-stream-data=file, --json-stream-data=file-prefix
sets the prefix for stream data files, overriding the default,
which is to use the output file name. Whatever is given here
will be appended with -nnn to create the name of the file that
will contain the data for the stream stream in object nnn.
)");
ap.addOptionHelp("--json-output", "json", "apply defaults for JSON serialization", R"(--json-output[=version]

Implies --json=version. Changes default values for certain
options so that the JSON output written is the most faithful
representation of the original PDF and contains no additional
JSON keys. See also --json-stream-data, --json-stream-prefix,
and --decode-level.
)");
ap.addOptionHelp("--json-input", "json", "input file is qpdf JSON", R"(Treat the input file as a JSON file in qpdf JSON format. See the
"qpdf JSON Format" section of the manual for information about
how to use this option.
)");
ap.addOptionHelp("--update-from-json", "json", "update a PDF from qpdf JSON", R"(--update-from-json=qpdf-json-file

Update a PDF file from a JSON file. Please see the "qpdf JSON"
chapter of the manual for information about how to use this
option.
)");
ap.addHelpTopic("testing", "options for testing or debugging", R"(The options below are useful when writing automated test code that
includes files created by qpdf or when testing qpdf itself.
)");
ap.addOptionHelp("--static-id", "testing", "use a fixed document ID", R"(Use a fixed value for the document ID. This is intended for
testing only. Never use it for production files. See also
qpdf --help=--deterministic-id.
)");
ap.addOptionHelp("--static-aes-iv", "testing", "use a fixed AES vector", R"(Use a static initialization vector for AES-CBC. This is intended
for testing only so that output files can be reproducible. Never
use it for production files. This option is not secure since it
significantly weakens the encryption.
)");
ap.addOptionHelp("--linearize-pass1", "testing", "save pass 1 of linearization", R"(--linearize-pass1=file

Write the first pass of linearization to the named file. The
resulting file is not a valid PDF file. This option is useful only
for debugging qpdf.
)");
ap.addOptionHelp("--test-json-schema", "testing", "test generated json against schema", R"(This is used by qpdf's test suite to check consistency between
the output of qpdf --json and the output of qpdf --json-help.
)");
ap.addOptionHelp("--report-memory-usage", "testing", "best effort report of memory usage", R"(This is used by qpdf's performance test suite to report the
maximum amount of memory used in supported environments.
)");
}
static void add_help(QPDFArgParser& ap)
{
    add_help_1(ap);
    add_help_2(ap);
    add_help_3(ap);
    add_help_4(ap);
    add_help_5(ap);
    add_help_6(ap);
    add_help_7(ap);
    add_help_8(ap);
ap.addHelpFooter("For detailed help, visit the qpdf manual: https://qpdf.readthedocs.io\n");
}