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"Hartmut" == Hartmut Henkel writes:

On Mon, 21 Feb 2005, Heiko Oberdiek wrote:

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This could be solved by an internal variable that records the maximum version of used PDF features. Then conflicts with \pdfoptionpdfminorversion can be detected and an error or warning can be raised.

Or pdftex could track the maximum of minor version and write this value at the _end_ of the pdftex run (currently it's [...]

If you really want to change the pdftex sources, keep in mind that Adobe certainly will change the *major* number in the near future. Maybe it's better to keep the whole version number within one variable, so that if Adobe changes the major number, not everything has to be changed again. Regards, Reinhard -- ---------------------------------------------------------------------------- Reinhard Kotucha Phone: +49-511-4592165 Marschnerstr. 25 D-30167 Hannover mailto:reinhard.kotucha@web.de ---------------------------------------------------------------------------- Microsoft isn't the answer. Microsoft is the question, and the answer is NO. ----------------------------------------------------------------------------

Martin Schröder wrote:

On 2005-02-23 23:00:07 +0100, Reinhard Kotucha wrote:

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If you really want to change the pdftex sources, keep in mind that Adobe certainly will change the *major* number in the near future.

Nope. Changing the major number means everything can be incompatible; e.g. PDF 2.0 could use XML instead of XREF+objects. That would break everything, which even Adobe can't do.

i suppose they will do the same as with PS, level 3 is still downward compatible, so major is not so much breaking things but more indicating some real big change (whatever that may be) Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------

Martin Schröder wrote:

On 2005-02-24 10:53:38 +0100, Hans Hagen wrote:

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i suppose they will do the same as with PS, level 3 is still downward compatible, so major is not so much breaking things but more indicating some real big change (whatever that may be)

The spec says this in H.1:

"Adobe increments the major version number when the PDF specification changes in such a way that existing viewer applications are unlikely to read a document without serious errors that prevent pages from being viewed."

sure, but the reader will read older versions; i wonder, what criterium do we use for incrementing a pdf major number Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------