[gs-devel] Ubuntu Gutsy does not print secured PDFs via Acroread and Ghostscript

Ken Sharp ken.sharp at artifex.com
Tue Nov 27 04:15:03 PST 2007


Hi Till,


At 11:40 27/11/2007 +0000, Till Kamppeter wrote:

You may need Ralph's help on this one, but...

>This means that the revision 8187 has a bug which got fixed in the final 
>release. As the policy of updates to stable releases of Ubuntu is to do 
>changes as small as possible to minimize risks of regressions, I would 
>like to know whether one can fix this problem by applying a small patch 
>instead of updating Ghostscript to 8.61 final which could be a rather big 
>change.

Assuming it a single fix, there should be a patch in the subversion archive 
which addresses just this issue. The trick is going to be identifying it ;-)

There are ~200 revisions between 8187 and the released 8.61. I did find 
three possible patches, one relating to PDF 1.5 security, one relating to 
PDF 1.6 security (128-bit AES), the other to potentially invalidly secured 
PDF files.

See bugs #688958, #688880, #687326. Your issue of course may not be any of 
those...

When you say 'secured' what level of protection and what kind of security 
has been applied ? Do you have an example file to look at ?


                     Ken

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