menekis/OCRmyPDF
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a5942209e8a42def097cecd89a7707cb11acbb3f
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8 Commits
Author SHA1 Message Date
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 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
James R. Barlow 25c1c160b8 Move optimize to new file 2018-04-16 17:22:06 -07:00