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FileMerge for comparing pdf files

Is it possible to use FileMerge to compare pdf files.

I found a post that describes the process, but after following every step I just can’t seem to be able to compare two simple pdf files.

The preference for FileMerge look like this:

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FileMerge preferences

And the script I wrote under $HOME/Local/bin is simply:

#!/bin/sh
pdftotext -layout -nopgbrk -enc UTF-8 "$1" - | iconv -c -f UTF-8 -t MacRoman

even though I have also tried to replace pdftotext by xpdf-pdftotext as per one of the last comments in that post.

FileMerge tells me the two files I’m trying to compare are equal, but they’re clearly not.


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