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
`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 image for
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 image for
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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Thank you for telling us and testing this. I'll mark this bug as fixed.
** Changed in: gimp (Ubuntu)
Status: Confirmed = Fix Released
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I tested this on Ubuntu 10.04 Lucid Lynx alpha 2 with poppler updated
to the latest available Ubuntu package.
Uname: Linux 2.6.32-10-generic i686
Packages: evince 2.29.5-0ubuntu1
poppler 0.12.3-0ubuntu1
I used pdfimages to extract the image from the file in comment #8. The
PBM
** Changed in: poppler (Ubuntu)
Importance: Undecided = Low
--
pdfimages produces inverted image for black white image
https://bugs.launchpad.net/bugs/134313
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** Changed in: gimp (Ubuntu)
Importance: Undecided = Low
--
pdfimages produces inverted image for black white image
https://bugs.launchpad.net/bugs/134313
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This bug is present in 0.6.4-1ubuntu2 in Hardy.
--
pdfimages produces inverted image for black white image
https://bugs.launchpad.net/bugs/134313
You received this bug notification because you are a member of Ubuntu
Desktop Bugs, which is subscribed to gimp in ubuntu.
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desktop-bugs mailing
Here is a PDF whose image (PBM) is extracted reversed.
** Attachment added: neva_kar__itri.pdf
http://launchpadlibrarian.net/15735303/neva_kar__itri.pdf
** Changed in: poppler (Ubuntu)
Status: Invalid = Confirmed
--
pdfimages produces inverted image for black white image
Hello Greg,
Thanks for looking into this issue.
No, everything works now fine with the pdfimages program on uptodate
Hardy.
I had added poppler because the package poppler-utils, is the one
hosting the pdfimages command on a vanilla Ubuntu system, so it is no
longer an issue with poppler as
** Changed in: poppler (Ubuntu)
Status: Incomplete = Invalid
--
pdfimages produces inverted image for black white image
https://bugs.launchpad.net/bugs/134313
You received this bug notification because you are a member of Ubuntu
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I can confirm this in GIMP, but not with pdfimages in Gutsy. pdfimage
does not produce inverted pdms using the pdfimages file x
poppler-utils: 0.6-0ubuntu2.1
GIMP: 2.4.2-0ubuntu0.7.10.1
** Changed in: gimp (Ubuntu)
Status: New = Confirmed
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pdfimages produces inverted image for
Is the pdfimages issue still present for anyone?
** Changed in: xpdf (Ubuntu)
Status: New = Invalid
** Changed in: poppler (Ubuntu)
Status: New = Incomplete
--
pdfimages produces inverted image for black white image
https://bugs.launchpad.net/bugs/134313
You received this bug
Here is a program to invert a PBM file, as a workaround to subject bug.
Compilation:
gcc -o pbminvert pbminvert.c
Execution:
cat file_to_be_inverted.pbm | ./pbminvert inverted_file.pbm
** Attachment added: pbminvert.c
http://launchpadlibrarian.net/9888568/pbminvert.c
--
pdfimages produces
This behavior can be reproduced with the GIMP :
- Open the attached file test.gif in the GIMP :
- Save it as test.pbm, choosing raw data formatting.
- Close the image window
- Open the previously saved file test.pbm
- The image is inverted
I confirm the behavior with pdfimages included
Adding the resulting file test.pbm from abave test
** Also affects: poppler (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: test.pbm
http://launchpadlibrarian.net/9669863/test.pbm
--
pdfimages produces inverted image for black white image
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