Related:
"In general, Acrobat and Reader will show a negative image when the
image data indicates that it needs to be inverted. When you have images
that are compressed with the CCITTG4 algorithm, there is a flag in the
image data that indicates if a logical "1" indicates black or white. The
softw
`pdfimages -list mypdf.pdf` shows all of my pages were encoded in
`ccitt` format.
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https://bugs.launchpad.net/bugs/134313
Title:
pdfimages produces inverted
Still occurring on Ubuntu 18.04. This is weird. There's got to be a way
to fix it!
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https://bugs.launchpad.net/bugs/134313
Title:
pdfimages produces inverted
Version info:
```
$ pdfimages -v
pdfimages version 0.62.0
Copyright 2005-2017 The Poppler Developers - http://poppler.freedesktop.org
Copyright 1996-2011 Glyph & Cog, LLC
```
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Still occuring for regularly on ubuntu 17.10 artful. I regularly ocr pdf
of scanned document and this occurs frequently for fax-compressed files.
** Attachment added: "Test file"
https://bugs.launchpad.net/ubuntu/+source/xpdf/+bug/134313/+attachment/5048705/+files/orig.pdf
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