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| author | Jay Berkenbilt <ejb@ql.org> | 2020-10-15 20:52:14 +0200 |
|---|---|---|
| committer | Jay Berkenbilt <ejb@ql.org> | 2020-10-15 20:53:06 +0200 |
| commit | a1994a53438612405c1d00d7bd9b3ef78ae477ef (patch) | |
| tree | bea8eea644a19b5a75def89513f5865fbe3aa612 /manual | |
| parent | 88b8f8ec86c107e0d9bbe268b373917dd0ffca3c (diff) | |
| download | qpdf-a1994a53438612405c1d00d7bd9b3ef78ae477ef.tar.zst | |
Fix/clarify documentation on --rotate option (fixes #470)
Make clear that you almost always want + or - before an angle when
specifying rotation.
Diffstat (limited to 'manual')
| -rw-r--r-- | manual/qpdf-manual.xml | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/manual/qpdf-manual.xml b/manual/qpdf-manual.xml index 48262e70..74f0279a 100644 --- a/manual/qpdf-manual.xml +++ b/manual/qpdf-manual.xml @@ -936,14 +936,16 @@ make <option>angle</option> portion of the parameter may be either 90, 180, or 270. If preceded by <option>+</option> or <option>-</option>, the angle is added to or subtracted from - the specified pages' original rotations. Otherwise the pages' - rotations are set to the exact value. For example, the command - <command>qpdf in.pdf out.pdf --rotate=+90:2,4,6 + the specified pages' original rotations. This is almost always + what you want. Otherwise the pages' rotations are set to the + exact value, which may cause the appearances of the pages to + be inconsistent, especially for scans. For example, the + command <command>qpdf in.pdf out.pdf --rotate=+90:2,4,6 --rotate=180:7-8</command> would rotate pages 2, 4, and 6 90 degrees clockwise from their original rotation and force the rotation of pages 7 through 9 to 180 degrees regardless of their original rotation, and the command <command>qpdf in.pdf - out.pdf --rotate=180</command> would rotate all pages by 180 + out.pdf --rotate=+180</command> would rotate all pages by 180 degrees. </para> </listitem> |