Age | Commit message (Collapse) | Author |
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Space rather than newline after xref, missing /ID in trailer for
encrypted file. This enables qpdf to handle some files that xpdf can
handle. Adobe reader can't necessarily handle them.
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Even though this case is not valid according to the spec, it has been
seen, and caused an internal error.
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Rework QPDFWriter to always track old object IDs and QPDFObjGen
instead of int, thus not discarding the generation number. Switch to
QPDF::getCompressibleObjGen() to properly handle the case of an old
object eligible for compression that has a generation of other than
zero.
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Remove const qualifier from getTypeCode and get getTypeName methods of
QPDFObjectHandle, make them work properly for indirect objects, and
exercise them much better in the test suite.
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When caching objects in an object stream, only cache objects that
still resolve to that stream. See Changelog mod from this commit for
details.
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Fix exit status for case of errors without warnings, continue after
errors when possible, add test case for parsing a file with content
stream errors on some but not all pages.
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Change object type Keyword to Operator, and place the order of the
object types in object_type_e in the same order as they are mentioned
in the PDF specification.
Note that this change only breaks backward compatibility with code
that has not yet been released.
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Add virtual methods to QPDFObject, wrappers to QPDFObjectHandle, and
implementations to all the QPDF_Object types.
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This method allows parsing of the PDF objects in a content stream or
array of content streams.
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When writing a new stream, always remove /Crypt even if we are not
otherwise able to filter the stream.
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Original code was written before we could shallow copy objects, so all
the filtering was done by suppressing the output of certain keys and
replacing them with other keys. Now we can simplify the code greatly
by modifying shallow copies of dictionaries in place.
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Read and write support is implemented for /V=5 with /R=5 as well as
/R=6. /R=5 is the deprecated encryption method used by Acrobat IX.
/R=6 is the encryption method used by PDF 2.0 from ISO 32000-2.
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Test cases added in a future commit since they depend on /R=6 support.
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I noticed a test output file that was not accessed in the test suite
and added a test case for it.
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All version operations are now fully aware of extension levels.
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This file used to exercise a zero offset test case when qpdf would
visit every object in the file. After the next commit, qpdf no longer
touches unreferenced objects, so a reference had to be added to
continue to have this file exercise the zero offset case.
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For linearization tests where we are actually comparing the exact
output of the test with a known file, uncompress stream data so we can
see what's there. This makes looking at future changes a little
easier.
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Allowing users to subclass InputSource and Pipeline to read and write
from/to arbitrary sources provides the maximum flexibility for users
who want to read and write from other than files or memory.
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This replaces a PDF from the wild that I didn't want to include in the
test suite but used to verify the original fix.
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Use --encryption-file-password, if given, in addition to --password as
a source for passwords for files specified in --pages.
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LARGE_FILE_TEST_PATH -> QPDF_LARGE_FILE_TEST_PATH
SKIP_TEST_COMPARE_IMAGES -> QPDF_SKIP_TEST_COMPARE_IMAGES
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Implement --pages ... -- option for qpdf. Update TODO with remaining
things to document.
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Move object parsing code from QPDF to QPDFObjectHandle and
parameterize the parts of it that are specific to a QPDF object.
Provide a version that can't handle indirect objects and that can be
called on an arbitrary string.
A side effect of this change is that the offset used when reporting
invalid stream length has changed, but since the new value seems like
a better value than the old one, the test suite has been updated
rather than making the code backward compatible. This only effects
the offset reported for invalid streams that lack /Length or have an
invalid /Length key.
Updated some test code and exmaples to use QPDFObjectHandle::parse.
Supporting changes include adding a BufferInputSource constructor that
takes a string.
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Add --copy-encryption and --encryption-file-password options to qpdf.
Also strengthen test suite for copying encryption. The strengthened
test suite would have caught the failure to preserve AES and the
failure to update the file version, which was invalidating the
encrypted data.
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Method to copy encryption parameters from another file. Adapted from
existing code to copy encryption parameters from the original file.
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This way we don't have to hard-code the name of a second file in the
test driver for tests that require one.
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Throw an exception that directs the user to QPDF::copyForeignObject.
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This includes QPDF::copyForeignObject and supporting foreign objects
as arguments to addPage*.
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QPDFObjectHandle::{new,is,assert}Reserved, QPDF::replaceReserved
provide a mechanism to add objects to a PDF file when there are
circular references. This is a prerequisite to copying objects from
one PDF to another.
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Breaking API change: length parameter has disappeared from the
StreamDataProvider version of QPDFObjectHandle::replaceStreamData
since it is no longer necessary to compute it in advance. This
breaking change is justified by the fact that removing the length
parameter provides the caller an opportunity to simplify the calling
code.
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With QPDF allowing integers to contain 64-bit quantities, this change
is necessary to be able to linearize files whose sizes might be larger
than 10 digits.
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This works around cases where gs falsely complains about things in the
PDF files or gives warnings that don't harm the output. See comments
in qpdf.test for details.
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