Legacy ImageMagick Discussions Archive

Hi!

I believe I have found a bug.

Running:

convert file1.ppm ... fileN.ppm result\:.pdf

(note the name of the outpuf file ends with a ":" before the extension!)

Generates a bad (and much larger) PDF that evince can't read (complains that ppm is not supported).

Weirdly enough that can be worked around in two ways:

By removing or appending something after the ":" in the output file name:

Code: Select all

convert file1.ppm ... fileN.ppm result\:x.pdf

By making sure the file already exists:

Code: Select all

touch result.pdf
convert file1.ppm ... fileN.ppm result\:.pdf

Either way outputs a PDF that evince reads fine, and which is much smaller in size than the first one.

I note that my version of convert is not the most recent, so sorry if this is a known bug that has been fixed:

Code: Select all

convert --version
Version: ImageMagick 6.9.2-7 Q16 x86_64 2015-12-06 http://www.imagemagick.org
Features: Cipher DPC Modules OpenMP 
Delegates (built-in): bzlib cairo djvu fftw fontconfig freetype gslib jbig jng jp2 jpeg lcms ltdl lzma openexr pangocairo png ps rsvg tiff webp wmf x xml zlib

Cheers!

solstag wrote:touch result.pdf
convert file1.ppm ... fileN.ppm result\:.pdf

I don't see why the "touch" makes any difference. "result.pdf" is a different file to "result\:.pdf".
To some operating systems, ":" isn't a special character within filenames, so ":.pdf" is a valid filename. This isn't true of Windows.

What shell are you using? Your backslashes suggest Windows. ":.pdf" isn't a valid filename for Windows.

Another complication is that IM uses prefixes in front of filenames, separated by a colon. Hence, IM looks for colons within filenames and processes them separately.

You may be correct that this is a bug. However, I think it would be wise not to use colons within filenames for input to IM, or output from IM.

Legacy ImageMagick Discussions Archive

Bad pdf output if file name ends in ":" before extension

Bad pdf output if file name ends in ":" before extension

Re: Bad pdf output if file name ends in ":" before extension