There are quite a few things (probably more) that were introduced with PDF 1.4 that FOP uses: - XMP metadata streams - certain transparency features (soft masks for example) - certain color handling features - Tagged PDF (currently still in a branch)
Some of those (like XMP) shouldn't cause any problems as PDF 1.3 implementations will/should simply ignore these features. If you convert the PDFs to PDF/X-3:2002 (FOP has limited support for PDF/X-3:2003, BTW), the tool you use for the conversion should really handle any problems. At least I would expect it to. The problem is mainly transparency (especially soft masks) which currently cannot be disabled or otherwise handled properly. If you use PNGs with transparency and SVGs with transparency effects you could run in this problem. FOP can currently not do transparency flattening which would be required to support PDF/X entirely. On 11.09.2009 09:31:15 Georg Datterl wrote: > Hi folks, > > Big surprise: No quiz today, didn't run into any problems after the > table problem. But Jeremias just wrote in a different thread: > > > FOP currently produces PDF 1.4 > > If I want to convert this 1.4 PDFs to 1.3 PDFs (X3), are there any > known problems? Constructs not to use? (PDFs included through Jeremias' > extension are already PDF-1.3, external-graphics are PNG) > > Regards, > > Georg Datterl Jeremias Maerki --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
