[NTG-pdftex] Creating identical PDF files with different pdfTeX runs

Frank Küster frank at debian.org
Thu Mar 16 09:48:35 CET 2006

Reinhard Kotucha <reinhard.kotucha at web.de> wrote:

> Comparing bitmaps, as some people already suggested, is a good thing.
> It shouldn't be too difficult to write a script which produces a
> bitmap file for each page (using ghostscript) and then creates a file
> which consists of lines like
> <pagenumber> <md5sum of the bitmap file>
> The bitmap files can be removed by the script when it is finished and
> standard UNIX tools can be used to examine the output files.
> Particularly, diff(1) can be used efficiently.  It will tell you the
> numbers of the pages which are different.

That's a very good suggestion, thanks!

Regards, Frank
Frank Küster
Single Molecule Spectroscopy, Protein Folding @ Inst. f. Biochemie, Univ. Zürich
Debian Developer (teTeX)

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