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4e2a98ead4f23001f8c62cbb90b0f74de8edbb6c
Commit Graph
406 Commits
Author SHA1 Message Date
James R. Barlow 4e2a98ead4 leptonica: fix junkpixt harder 2019-03-16 14:08:58 -07:00
James R. Barlow 1b4542aa77 Further fixes to external program version testing 2019-03-07 14:27:16 -08:00
James R. Barlow 902bda43e3 main: fix version testing unnecessarily throwing exception to itself 2019-03-05 22:32:06 -08:00
James R. Barlow f7da63f68b main: fix redundant argument test 2019-03-05 22:29:29 -08:00
James R. Barlow 5da26e4c9c Convert most uses of subprocess.Popen to subprocess.run in test suite 2019-03-05 22:25:22 -08:00
James R. Barlow c19c852705 Fix exception while attempting to print error message for missing program 2019-03-05 16:32:48 -08:00
James R. Barlow a27ee3ee8c optimize: use Decode to invert 1bpp PNGs for now 2019-03-03 17:50:12 -08:00
James R. Barlow 974979b0a0 Merge branch 'feature/optimization-fixes' 2019-03-03 15:00:20 -08:00
James R. Barlow 66586bdaab optimize: Disable jpg->png migration 
Needs more testing before release
 2019-03-03 14:59:59 -08:00
James R. Barlow 01d2ea309f Fix Predictor name and photometric flip 2019-03-03 14:57:15 -08:00
James R. Barlow 52fd84fa95 Remove debug message 2019-03-03 13:31:10 -08:00
James R. Barlow 4f69ace868 optimize: fix all JBIG2 images binned on last page 
During some past refactor it appears we now end up treating
all JBIG2 images as if they appeared on the last page in the
file. This bug had no visual side ffects but probably led to
suboptimal JBIG2 encoding.
 2019-03-03 03:28:17 -08:00
James R. Barlow 497c531112 optimize: update comments 2019-03-03 03:28:17 -08:00
James R. Barlow b27b92fbf3 optimize: on aggressive settings try JPG to PNG transcoding 
If the color count of an image is low such as when black and white
documents are scanned in color, PNG with lossy quantization may
produce a superior encoding to JPEG. This is expensive to test however.
 2019-03-03 03:28:17 -08:00
James R. Barlow 2e6ba2df8c optimize: fix recoding of PNGs 
Previously we opened pngquant-compressed PNGs with transcoding
because the transcode free function in Leptonica didn't seem to
work. This mean Leptonica may have thrown away the hard of
pngquant if didn't understand the encoding.

This change resolves the issue and allows us to open PNG encoded
data and insert it into a PDF without transcoding. Should improve
encoding quality.
 2019-03-03 03:28:17 -08:00
James R. Barlow 67a405c6b7 Move install-time external program checks out of setup.py 
We did runtime tests for several of them anyway, and it's better to do
at runtime since config may change after installation.
 2019-03-03 03:26:56 -08:00
James R. Barlow 0bf26b03ae optimize: Modernize pikepdf usage 2019-02-16 14:03:10 -08:00
James R. Barlow 19e35db2b7 Fix issue when weave handoff occurs with no OCR font present 
If using --tesseract-timeout 0 and any image processing on a file with
more than 100 pages, the weave handoff will occur. Ensure this
works correctly even if no Glyphless font is present.

Closes #347
 2019-02-10 02:05:59 -08:00
James R. Barlow df688742d5 Fix exception on traversing corrupt ToC entries 2019-02-10 00:50:21 -08:00
James R. Barlow 03ab5a8ee2 If --tesseract-timeout 0, say nothing when we time out 
This is our "don't actually OCR" mode. No need to mention it.
 2019-02-08 13:04:48 -08:00
James R. Barlow 4f06920224 Be os.nice()-r 2019-02-07 17:24:47 -08:00
James R. Barlow 5483dacf52 Fuzz 2019-02-07 17:09:47 -08:00
James R. Barlow ae7844ad88 --clean-final implies --clean 
It's never made sense to leave it out before; might as well introduce it.
 2019-02-07 17:08:08 -08:00
James R. Barlow f095e91cb4 unpaper-args: add test case and harden feature 2019-02-07 16:21:02 -08:00
James R. Barlow 9a4493f211 Add --unpaper-args 
Needs test code and stricter validation
 2019-01-18 05:33:28 -08:00
James R. Barlow e3a58219d1 Ensure XObjects with no subtype don't cause an exception 
Closes #325
 2019-01-08 16:46:08 -08:00
James R. Barlow f34b3015b2 Prevent Ghostscript from generating invalid XMP metadata 
If DocumentInfo contains NULs Ghostscript will generate XMP with
NULs which is not allowed. Repair DocumentInfo before Ghostscript sees it.
 2019-01-04 13:20:41 -08:00
James R. Barlow 7d330afd81 Delinting 2019-01-02 13:34:45 -08:00
James R. Barlow c771938907 Convert to f-strings where it makes sense 2018-12-31 15:01:19 -08:00
James R. Barlow 8c0009c5c8 Make pdfminer.six optional 
Mainly since the current release of pdfminer.six lacks a sdist, blocking
homebrew packaging. Also in case other distros don't accept pdfminer.six.
 2018-12-31 01:08:43 -08:00
James R. Barlow cfc5cdf47d pdfa: remove a pile of deprecated code 
It's now handled in pikepdf.
 2018-12-31 00:05:13 -08:00
James R. Barlow 05152a8af9 Remove always-false Tess v3 tests 2018-12-30 02:01:05 -08:00
James R. Barlow 0880b16491 Sort imports with isort 2018-12-30 01:28:15 -08:00
James R. Barlow 06308a22ce Reformat with black 2018-12-30 01:27:49 -08:00
James R. Barlow 8b90c45437 Drop support for Tesseract 3 2018-12-30 00:47:12 -08:00
James R. Barlow 72b920eb16 Drop support for Python 3.5 2018-12-30 00:23:26 -08:00
James R. Barlow b4a51907d6 Detect when metadata is dropped during PDF/A conversion 2018-12-30 00:13:25 -08:00
James R. Barlow 1ca1221432 leptonica.py: Fix exception on certain types of barcode failures 
Closes #322
 2018-12-19 17:23:23 -08:00
James R. Barlow 13d20bd993 pdfinfo: tolerate PDFs that overflow and underflow the graphics stack 2018-12-15 15:10:29 -08:00
James R. Barlow ed9bb985e2 Fix pikepdf 0.9.0 2018-12-14 23:21:13 -08:00
James R. Barlow 0ebbd4e21b Don't open encrypted files, even if password is empty 2018-12-13 22:48:00 -08:00
James R. Barlow 2cb75f6076 Refactor pipeline to make PDF/A conversion a separate step 2018-12-13 20:48:48 -08:00
James R. Barlow 857d871364 Fix regression on Ghostscript path 2018-12-13 20:36:41 -08:00
James R. Barlow 632dab2cc0 Replace Ghostscript DOCINFO and fix 9.25 metadata date regression 
We no longer use Ghostscript to manage PDF metadata, instead
omitting the DOCINFO segment from the pdfmark file we generate.

Instead all of the relevant metadata code has been migrated to pikepdf,
and we use that API. This should be more consistent and fixes the
Ghostscript version-depedent quirks.

Also removes our python-xmp-toolkit dependency, except for
testing.
 2018-12-13 18:13:30 -08:00
James R. Barlow 75c5d8055c pdfinfo: fix FutureWarning 2018-12-12 22:12:14 -08:00
James R. Barlow a938bbea55 Remove more libxmp dependencies 2018-12-12 22:02:35 -08:00
James R. Barlow 414407fbd6 Deprecate encode/decode_pdf_date and remap to pikepdf version 2018-12-12 22:01:21 -08:00
James R. Barlow 076fc717df pdfa: replace PDF/A checking with pikepdf implementation 2018-12-12 21:41:16 -08:00
James R. Barlow 9df24a81b7 Fix comment in layout.py 2018-11-28 15:16:34 -08:00
James R. Barlow 40c0acd3f2 Support using --force-ocr and --threshold or --mask-barcodes together 2018-11-28 15:16:24 -08:00