Bug#1118385: Non-reproducibility in pdfTeX

[Preuße , Hilmar]

Am 17.05.2026 um 15:52 schrieb John Collins:

On 5/16/26 2:55 PM, Norbert Preining wrote:

Hello John,

$ for i in 1 2; do pdflatex -interaction=batchmode "\pdfinfo{/ CreationDate(D:20260429034606Z)/ ModDate(D:20260429034606Z)}\input{valuators.tex}"; mv valuators.pdf valuators${i}.pdf; sleep 2; done

.....

$ cmp valuators1.pdf valuators2.pdf

$ echo $?
0

Did you also set SOURCE_DATE_EPOCH, e.g.,like Akira did:

   export SOURCE_DATE_EPOCH=`perl -e "print time();"`
   export FORCE_SOURCE_DATE=1

For me it was sufficient to overwrite the \pdfinfo at the command line of pdflatex, as Norbert did:

\pdfinfo{/CreationDate(D:20260429034606Z)/ModDate(D:20260429034606Z)}



Hilmar
--
sigfault

That way one gets pdf files, which do not differ in the time stamps, just in the byte block, this bug report is discussing about.

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