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459 Commits
Author SHA1 Message Date
James R. Barlow d787e1ea0f ghostscript.py not saved in last commit 
Given importance of last one, confirmed that when the file is saved all tests pass too.
Passing is invariant with this change.
 2018-05-01 22:59:22 -07:00
James R. Barlow b5d7e9cbb0 Fix all issues with rotations 
All tests now pass
 2018-05-01 22:50:20 -07:00
James R. Barlow f3b6d9dcdf Fix a comment about Tesseract behavior in certain versions 2018-05-01 21:31:09 -07:00
James R. Barlow a9abe13185 Remove the old tesseract pdf_renderer 2018-05-01 17:31:34 -07:00
James R. Barlow 37677de884 Fix regressions: pdfa.ps not used, PDF/A failures, handling of text layers with no font 2018-05-01 15:51:46 -07:00
James R. Barlow c7387de325 Fix auto rotate 2018-05-01 15:18:28 -07:00
James R. Barlow 2495b1e038 Refactor find font, get test cases working again 2018-05-01 14:48:41 -07:00
James R. Barlow 073ee52ce7 Use hocr and weave; eliminate old combine layers and merge pages 2018-05-01 14:21:53 -07:00
James R. Barlow 54150a14e9 Further elimination of tesseract renderer special casing 
We don't need to keep a "skip page" around anymore since
skipping means just not grafting on the text layer.
 2018-05-01 13:36:20 -07:00
James R. Barlow 88ff091cce Unify tesseract and sandwich renderer paths 
Since the new weaving method copies the font and content
stream from the Tesseract PDF, it doesn't matter if Tesseract
happens to have an image or not.
If Tesseract is text-only capable we use that feature for efficiency,
but ignore the image either way.
 2018-05-01 13:24:20 -07:00
James R. Barlow e87a5776f1 Remove now-unnecessary code to rotate pages 
Track only the decision to change rotation.
 2018-05-01 13:01:25 -07:00
James R. Barlow 0806ce6406 Fix rotation for unsplit (modulo --rotate-pages) 2018-04-30 20:58:42 -07:00
James R. Barlow 6409894a71 feature/unsplit-try-imagerotate 2018-04-30 20:48:59 -07:00
James R. Barlow e7286f6129 Unsplit now works with multipage, --force-ocr 2018-04-30 14:46:20 -07:00
James R. Barlow 2ab94b3151 unsplit: it's alive 
First successful file output.
 2018-04-28 01:57:41 -07:00
James R. Barlow 7ee90890ec Add copying of essential information from Tesseract textonly 2018-04-27 23:19:08 -07:00
James R. Barlow 383e726d65 Expand size growth reasons to other arguments that trigger transcoding 2018-04-27 19:34:57 -07:00
James R. Barlow e046f70642 Set OMP_THREAD_LIMIT unconditionally, for pngquant 2018-04-27 19:19:30 -07:00
James R. Barlow 2131ad4670 Fix --remove-background error on PDFs with colormapped images 
It's unclear how exactly a
colormapped image gets to this
spot given the tendency of other
image processing tools to flatten
such images, but someone made it happen, so now we make sure
the image is okay.

Closes #262
 2018-04-27 17:21:01 -07:00
James R. Barlow abcae0c2a4 Fix helpers.py again 2018-04-25 22:10:51 -07:00
James R. Barlow 11cd6201d9 helpers: fix missing call to complain() 
In practice this is probably unreachable.
 2018-04-25 21:57:50 -07:00
James R. Barlow 8d2a917676 Page unsplit, development 2018-04-25 21:56:43 -07:00
James R. Barlow 44b4afa534 Begin conversion from page splititng to page markers 2018-04-23 22:57:50 -07:00
James R. Barlow 775be3933c Cherrypick merge_pages unification 2018-04-20 23:08:15 -07:00
James R. Barlow df87e21c85 Add support for PDF/A-3 
No ability to attach files however
 2018-04-20 00:06:55 -07:00
James R. Barlow 8052019dde optimize: fix reporting of jbig2 groups 2018-04-19 01:54:44 -07:00
James R. Barlow a3d8950088 optimize: Don't save JPEGs if larger 2018-04-19 01:25:49 -07:00
James R. Barlow 004f5d3bf1 optimize: further improve decodeparms handling 2018-04-18 15:52:25 -07:00
James R. Barlow f5d308a156 optimize: refactor tricky /Filter and /DecodeParms handling 2018-04-18 15:30:21 -07:00
James R. Barlow 3869996758 optimize: jbig2 error 2018-04-18 01:36:38 -07:00
James R. Barlow cdb2107c4e optimize: jbigs2 fix 2018-04-18 01:31:35 -07:00
James R. Barlow 4db2b3413b optimize: more robustness 2018-04-18 01:25:34 -07:00
James R. Barlow b2f31bec79 Make optimize a lot safer 2018-04-18 00:20:06 -07:00
James R. Barlow 78f9f4a266 Be more defensive about accessing 2018-04-18 00:11:39 -07:00
James R. Barlow ad6087c342 optimize: more fixes 2018-04-17 23:58:10 -07:00
James R. Barlow 0d6ef430de optimize: fix "length not defined" 2018-04-17 23:38:00 -07:00
James R. Barlow a5942209e8 optimize: fix error on missing /Filter 2018-04-17 23:27:56 -07:00
James R. Barlow 9a60694cfc optimize: ccitt header fixes 
Changed to match TIFF spec's use of unsigned types, eliminated check for
/Columns.

There is some complex behavior for /Width != /Columns and
(/Width, /Columns) mod 8 != 0
that is not described well in the PDF spec.
 2018-04-17 23:27:25 -07:00
James R. Barlow 4bf13f4737 optimize: be less chatty 2018-04-17 23:25:41 -07:00
James R. Barlow 9e89b75186 Merge v6.1.5 2018-04-17 22:51:13 -07:00
James R. Barlow 0b10db91be Fix regression: Disable Ghostscript JPEG passthrough entirely 2018-04-17 17:00:24 -07:00
James R. Barlow 1a516b2af9 Fix regression: time stamp test suite failures 2018-04-17 16:59:21 -07:00
James R. Barlow 076363d78e Disable JPEG passthrough for Ghostscript 9.23 
Seems to corrupt JPEGs involved in image masks?
 2018-04-17 16:31:03 -07:00
James R. Barlow a620724d6a Fix PDF/A validation failure due to timezone being omitted from /ModDate 2018-04-17 15:16:48 -07:00
James R. Barlow 640b953ec7 Fix PDF/A validation failure due to timezone being omitted from /ModDate 2018-04-17 14:55:32 -07:00
James R. Barlow a009ca7597 Disable JPEG passthrough for Ghostscript 9.23 
Seems to corrupt JPEGs involved in image masks?
 2018-04-17 13:54:34 -07:00
James R. Barlow c974aec934 Search for image masks too 2018-04-17 02:06:08 -07:00
James R. Barlow 3033f03f64 Iterate images with pikepdf / fix mono PNG corruption 
To work around PNG corruption problem in PyMuPDF for monochrome images,
extract and save monochrome CCITT with synthetic TIFF header.

Works better but currently skips /ImageMask due to qpdf
implementation, which affects many files.
 2018-04-17 01:50:37 -07:00
James R. Barlow 72723e0bb5 optimize: be quieter 2018-04-16 18:06:02 -07:00
James R. Barlow 2fb6ab3939 Trap writePNG error 2018-04-16 17:29:10 -07:00