[pdftex] Printing problems with \pdfcrypt in pdftex-pretest-1.00a

Berthold Crysmann crysmann at dfki.de
Tue Aug 21 16:26:12 CEST 2001

Dear all,

I have noticed that pdftex pretest 1.00a produces files that may not
print on some Unix spool systems (e.g. CUPS with non-ps printer), if the
\pdfcrypt primitive is used. The reason for the print failure is that
the PS file generated by AR 4.05 cannot be piped to gs. CUPS (and other
spool systems), however, pipe to a gs backend on systems without a ps

Here's a simple procedure to reproduce the bug:

1. Generate document with pdfTeX, Version 3.14159-1.00a-pretest-20010806
and \pdfcrypt noedit in the preamble
2. Open in AR4.05 and print to file pdfcrypttest.ps
3. Open with ghostscript: `gs pdfcrypttest.ps' should work, `cat
pdfcrypttest.ps| gs -'  should fail.

If \pdfcrypt is not used, piping to gs should work again.



Berthold Crysmann
Deutsches Forschungszentrum Kuenstliche Intelligenz (DFKI) GmbH
Stuhlsatzenhausweg 3
D-66123 Saarbrücken

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