A few month ago Eric Dalquist added support for storing JPEG images in DCT compressed format within a PDF file. This was triggered by his requirement to have PDF files containing many JPEG images.
I have got a similar problem but I need to store many TIFF / CCITT Group 4 encoded images within a PDF file. Similar to JPEG the PDF format does support CCITT compression. So I went ahead, grabbed Fop-0.20.2RC and added support for storing CCITT Group 3/4 encoded TIFF files in PDF CCITTFaxDecode format. I have done that using code from the JAI codecs to decode the TIFF directories, therefore this enhancement is JAI dependent. If anyone is interested I am happy to provide the changes to individuals or if there is general interest to give the changes to FOP developers with CVS update access for integration. So far I have tested it only with a very limited set of TIFF files and therefore I don't think it is ready for prime time yet. While doing all this a related question popped up: In the current system JPEG images appear to be triple encoded, eg. the PDF contains: /Filter [ /ASCII85Decode /FlateDecode /DCTDecode ] This seems to be a bit of an overkill and a simple /Filter /DCTDecode should suffice and make the files even smaller or is there a reason behind using the triple encoding scheme? Manuel --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]