[tex-live] possible problem with thumbpdf

Heiko Oberdiek heiko.oberdiek at googlemail.com
Wed Jul 7 16:32:38 CEST 2010

On Wed, Jul 07, 2010 at 03:09:54PM +0100, Philip Taylor (Webmaster, Ret'd) wrote:

> Heiko Oberdiek wrote:
> >Then important objects for the perl script thumbpdf are hidden,
> >because compressed. In short, thumbpdf doesn't support compressed
> >objects. Thus either use \pdfobjcompresslevel=0 or don't use
> >thumbpdf. I don't have plans to extend thumbpdf, because supporting
> >compressed objects would require a complete rewrite of thumbpdf using
> >a PDF library. And I doubt the usefulness of thumbpdf nowadays, when
> >AR versions generate thumbnails on the fly very fast.
> Could "thumbpdf" itself perhaps specify "\pdfobjcompresslevel = 0\relax" ?

There are two PDF files that needs parsing by thumbpdf:
* the original PDF file to get the MediaBox.
* an internal PDF file with the thumbnail data.

The second case is fixed in version thumbpdf 3.11.
The first case can't (at least, thumbpdf.sty generates a warning),
but this case is less problematic, because thumbpdf uses a default
resolution in case of an unknown MediaBox.

Yours sincerely
  Heiko Oberdiek

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