[tex-live] pretest: epstopdf overwrites existing files

Angelo Graziosi angelo.graziosi at alice.it
Sun Jul 5 19:02:30 CEST 2009

Uwe Siart ha scritto:
> Angelo Graziosi  writes:
>> In any case, it seems that it happens only with PDF files which are
>> older than EPS ones.
> But I think it should not happen at all. The assumption behind this
> feature is that the PDFs are derivated from the EPSs. But this is not
> generally true.
> Imagine an author who uses PDF graphics with transparency (a PDF 1.6
> feature) and EPS versions of the same but without transparency. It may
> further happen that this author received those files from a third person
> and is unable to recover those files (because he is not the creator of
> those graphics or because he lacks access to the creating software).
> Now unsuspectingly he calls 'pdflatex' after a TL update and his
> transparent PDF graphics are lost forever. Ruined by a harmless latex
> run. TeX destructed the document sources. What a nightmare! Ok, he could
> have avoided this if only he knew about the new magic command. But how
> many users will fall into that trap during the first 2-3 years?

I agree fully. Restoring the old behavior seems the wisest thing to do. 
Nor is it conceivable that one adds '\newcommand{\DoNotLoadEpstopdf}{}' 
in each document source. And for documents written in the past? No, the 
best thing is that each user convert its EPS file manually if one needs 


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