[Bug 381668] Re: xfig produces illegal PNG file when exporting as PNG

2021-01-30 Thread Roland Rosenfeld
this is in fig2dev/transfig, not in xfig.

** Changed in: xfig (Ubuntu)
   Status: New => Invalid

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Title:
  xfig produces illegal PNG file when exporting as PNG

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[Bug 381668] Re: xfig produces illegal PNG file when exporting as PNG

2021-01-30 Thread Roland Rosenfeld
This isn't a problem in xfig, since xfig doesn't create png files, but
delegates this to fig2dev program, which currently is contained in
package fig2dev and in former versions in transfig package.

I tried this out with current version of the program and wasn't able to 
reproduce this problem.
Please try again with a newer version and tell me, weather it works now.
Please also check version number of fig2dev used.

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Title:
  xfig produces illegal PNG file when exporting as PNG

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[Bug 381668] Re: xfig produces illegal PNG file when exporting as PNG

2011-03-31 Thread David Lee Lambert
** Also affects: transfig
   Importance: Undecided
   Status: New

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Title:
  xfig produces illegal PNG file when exporting as PNG

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[Bug 381668] Re: xfig produces illegal PNG file when exporting as PNG

2011-03-31 Thread David Lee Lambert
** Also affects: transfig (Ubuntu)
   Importance: Undecided
   Status: New

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Title:
  xfig produces illegal PNG file when exporting as PNG

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[Bug 381668] Re: xfig produces illegal PNG file when exporting as PNG

2011-03-31 Thread David Lee Lambert
This doesn't seem to be a problem with Xfig itself; rather with the
transfig helper program (a separate install in Ubuntu), which in turn
calls GhostScript as part of the process of producing PNG files.

Somehow it writes two concatenated PNG images to the output file; the
first has the image data, the second one is blank, the same size as the
image.  I can't seem to duplicate this behavior by taking a PDF from
another program, converting it to PostScript, and running gs -q -dSAFER
-sDEVICE=png16m -r80 -g850x1100 -sOutputFile=file.png - file.ps; so
it's probably not a problem with GhostScript, just with the PostScript
that xfig produces.

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Title:
  xfig produces illegal PNG file when exporting as PNG

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[Bug 381668] Re: xfig produces illegal PNG file when exporting as PNG

2010-07-04 Thread Dominique Pellé
This bug is still present in Ubuntu-10.04

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[Bug 381668] Re: xfig produces illegal PNG file when exporting as PNG

2009-11-29 Thread dominiko
This bug is still present in Ubuntu-9.10 (Karmic Koala)

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[Bug 381668] Re: xfig produces illegal PNG file when exporting as PNG

2009-05-29 Thread dominiko
pngcheck tool also complains about the PNG file produced by xfig (so
it's not only optipng):

$ pngcheck foo.png 
foo.png  additional data after IEND chunk

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