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222 Commits
Author SHA1 Message Date
James R. Barlow aef043db0b Revise parameter validation for output-type, pdf-renderer, lang 2018-05-10 14:53:22 -07:00
James R. Barlow b8f3ead541 Remove tesseract renderer entirely 
Grafting lets us work with older Tesseract versions as if they could use
sandwich, so there is no point in keeping it. It's been deprecated for a
long time now anyway.
 2018-05-10 14:06:13 -07:00
James R. Barlow e0bb898f29 Remove hocr debug renderer (-g) 
The fact that this produces additional pages makes it a maintenance
burden. hocr can be debugged using hocrtransform.
 2018-05-10 13:48:39 -07:00
James R. Barlow 45336c7c28 textareas: filter out images 2018-05-10 01:17:28 -07:00
James R. Barlow 20aabb2e83 When deciding if there is a text on a page, ignore the margins 
Margins may include watermarks or digital stamps on otherwise
text-free pages.
 2018-05-10 01:16:11 -07:00
James R. Barlow da80d3f354 Add unconditional (for now) whiteout of text areas 2018-05-07 17:37:46 -07:00
James R. Barlow 9226f8a5d1 Trap PDF/A-3 errors on old Ghostscript 2018-05-04 15:29:43 -07:00
James R. Barlow 5c8a007f3e Fix failure to prevent use of Ghostscript on /UserUnit files 2018-05-04 13:34:34 -07:00
James R. Barlow b3ad3e297d v6.2.0 fixes 2018-05-03 17:04:23 -07:00
James R. Barlow 7cf83c77ca Merge branch 'feature/pdfa3' 2018-05-03 16:45:57 -07:00
James R. Barlow 8a9f174f63 Fix XMP validation issue with /CreationDate 
Related to previous validation issue. If the /CreationDate had no
timezone, Ghostscript also creates invalid metadata. Work around this.
Also fix up PDF date decoding, and transcode dates to standardize them.
 2018-05-03 16:30:20 -07:00
James R. Barlow 423cef08bf Handle procset properly 2018-05-02 14:48:02 -07:00
James R. Barlow 6376f77b8c Refactor, remove trigonometry 2018-05-02 12:30:34 -07:00
James R. Barlow e27e614ed9 Fixed rotation hard case 2018-05-02 01:32:11 -07:00
James R. Barlow b0c04704a1 Fixed all but one rotation case 2018-05-02 01:24:21 -07:00
James R. Barlow 6bb6bf8323 Fix correction angle used from wrong page 2018-05-02 01:00:30 -07:00
James R. Barlow e22fe8aefc Silence debug messages 2018-05-01 23:51:54 -07:00
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