Checking that 2 pdf are identical (md5 a solution?)

[Peter Chant]

rlevesque wrote:

> Is there a way to compare 2 pdf files generated at different time but
> identical in every other respect and validate by program that the
> files are identical (for all practical purposes)?

I wonder, do the PDFs have a timestamp within them from when they are 
created?  That would ruin your MD5 plan.

Pete

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