[pdftex] Forward looking object references

[Igor Khomyakov]

Hi Andreas,

It happens because test.pdf (the example that I posted) is not 100%
compliant pdf document (there's no xref table, the sizes/offsets can be off,
etc.) -- it was created manually (was a quick hack) just to prove the idea.
If you re-create the xref table and make sure all the sizes/offsets are
correct (AR5 can do this for you automatically), everything should work fine
(assuming that AFPL Ghostscript 8.00 supports PDF 1.4).

Best regards,
Igor.


----- Original Message -----
From: "Andreas Matthias" <amat at kabsi.at>
To: <pdftex at tug.org>
Sent: Sunday, March 23, 2003 1:23 PM
Subject: Re: [pdftex] Forward looking object references


> Igor Khomyakov wrote:
>
> > Below please find the PDF example that was initially created with
pdfTeX,
> > and then edited manually. This example shows that in PDF we can use
forward
> > references! Please check out object 1000. I believe that this document
can
> > be quite easily generated in one pass -- the object (xform) is at the
very
> > end of the file -- we do have necessary information by that time.
>
> [example]
>
> This is a nice example. Just two remarks that might be of
> interest:
>
> * Ghostscript cannot display this pdf file.
>   Tested with AFPL Ghostscript 8.00.
>
> * Try to insert this pdf into another one, like:
>     \pdfximage{test.pdf}
>     \pdfrefximage\pdflastximage
>     \end
>   Now AR5 does not display the XObject. Only AR4 accomplishes this.
>
> Seems like some pdf-viewers have problems with XObjects of that kind.
>
>
> Ciao
> Andreas
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