Legacy ImageMagick Discussions Archive

Hello,

I get this error

convert: coders/pdf.c:1814: WritePDFImage: Assertion `image->exception.reason != (const char *) ((void *)0)' failed.
Aborted

when I try to convert 400 tif files to a pdf via

Code: Select all

convert -limit memory 2gb -limit map 2gb -density 300 *tif -compress jpeg -quality 100 400.pdf

on Arch Linux with ImageMagick 6.9.1-10 Q16 x86_64 2015-08-05 on Arch Linux.

Any ideas why this is? Is my use not appropriate? Does anybody have suggestions for alternatives to create large jpeg-compressed pdf files from tif images on Linux?

PS: the commands are based on suggestions from viewtopic.php?t=23225

PPS:If I do:

Code: Select all

for i in *tif; do convert -density 300 $i -compress jpeg -quality 100 $i.jpg; echo $i done; done
pdfjoin *jpg 400.pdf

Then it fails on the second part with

Code: Select all

  pdfjam: Calling pdflatex...
  pdfjam: FAILED.
          The call to 'pdflatex' resulted in an error.
          If '--no-tidy' was used, you can examine the
          log file at
                  /var/tmp/pdfjam-ass4wk/a.log
          to try to diagnose the problem.
  pdfjam ERROR: Output file not written

Suggestion, see if it happens if you use some other compression method. Also is there a smaller limited number of input files that work?

fmw42 wrote:Suggestion, see if it happens if you use some other compression method. Also is there a smaller limited number of input files that work?

Thank you for suggesting this!

Trying around...

Converting 404 (7GB in total) .tif files to .pdf with zip compression:

Code: Select all

convert -density 300 -limit memory 0 -limit map 0 *tif -compress zip tif2zip.pdf
convert: unable to extend cache `in9192.tif': No space left on device @ error/cache.c/OpenPixelCache/3719.
convert: unable to extend cache `in9193.tif': No space left on device @ error/cache.c/OpenPixelCache/3719.
[...]

this is with /tmp/ being 4.0G in size.

If I run it as

Code: Select all

MAGICK_TMPDIR=/home/qubodup/it/ convert -density 300 -limit memory 0 -limit map 0 *tif -compress zip tif2zip.pdf

while having 43G available, it will also run out of size.

Converting 404 Gray & sRGB jpeg files (size: 3923x4557) between 0.5 and 9MB in size each, 2.7G total.

Code: Select all

$ convert -density 300 *jpg -compress zip jpgtozip.pdf
Killed

Another try:

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convert -density 300 -limit memory 0 -limit map 0 *jpg -compress none jpg2none.pdf
convert: unable to extend cache `in9192.tif': No space left on device @ error/cache.c/OpenPixelCache/3719.
[...]

It seems like all these messages just indicate running out of storage space, although only the zip compression seems to give a clear error message.

Solution

The end result file would probably be too huge for me, so rather than trying to work with subsets, I scaled down the images to 1961x2278 and converted them to pdf with jpeg or zip compression, based on their colorspace (jpeg seems to be ineffective for greyscale b/w) and then merged into one pdf file successfuly using pdfjoin

Code: Select all

for file in *tif; do
  FORMAT=`identify -format %[colorspace] $file`
  if [ $FORMAT = "Gray" ]; then
    COMPRESSION=zip
  else
    COMPRESSION=jpeg
  fi
  convert $file -density 72 -compress $COMPRESSION $file.pdf
  echo $file done
done

pdfjoin --outfile 404pages.pdf *pdf

The size of all tif files is 2042M.
The size of all pdf files is 275M.
The joined pdf size file is 272M.

Legacy ImageMagick Discussions Archive

tif to pdf 400 pages: WritePDFImage: Assertion `image->exception.reason != (const char ) ((void )0)' failed.

tif to pdf 400 pages: WritePDFImage: Assertion `image->exception.reason != (const char ) ((void )0)' failed.

Re: tif to pdf 400 pages: WritePDFImage: Assertion `image->exception.reason != (const char ) ((void )0)' failed.

Re: tif to pdf 400 pages: WritePDFImage: Assertion `image->exception.reason != (const char ) ((void )0)' failed.

Legacy ImageMagick Discussions Archive

tif to pdf 400 pages: WritePDFImage: Assertion `image->exception.reason != (const char *) ((void *)0)' failed.

tif to pdf 400 pages: WritePDFImage: Assertion `image->exception.reason != (const char *) ((void *)0)' failed.

Re: tif to pdf 400 pages: WritePDFImage: Assertion `image->exception.reason != (const char *) ((void *)0)' failed.

Re: tif to pdf 400 pages: WritePDFImage: Assertion `image->exception.reason != (const char *) ((void *)0)' failed.

tif to pdf 400 pages: WritePDFImage: Assertion `image->exception.reason != (const char ) ((void )0)' failed.

tif to pdf 400 pages: WritePDFImage: Assertion `image->exception.reason != (const char ) ((void )0)' failed.

Re: tif to pdf 400 pages: WritePDFImage: Assertion `image->exception.reason != (const char ) ((void )0)' failed.

Re: tif to pdf 400 pages: WritePDFImage: Assertion `image->exception.reason != (const char ) ((void )0)' failed.