Very likely the pdfbox merge utility does not merge the fonts used in the documents. So if you have the same font used in two documents the font will be embedded twice in the merged document. If you have many fonts the size can grow considerably.
If you think the difference in size in the individual PDFs is an issue send us a sample example to that we can investigate the reason for the difference. On Tue, Jun 4, 2013 at 9:57 AM, chandone <echan...@yahoo.com> wrote: > Is it indeed? Well, the fact is that I generate PDFs in two different ways: > > - individual PDFs, > - the same PDFs, but concatenated together into one big PDF, using the > Apache pdfbox PDFMergerUtility.mergeDocuments() method. > > Compared to the ones generated by FrameMaker, the individual PDFs grow from > 50-60 KB to 100-150 KB. In these PDF, the header and footer images are > present only once. > In the second case, the images are obviously repeated lots of times and the > document grow from 1-2 MB to 23 MB. In this case, I assume that, as the > images are originally part of separated document that were then merged, > they > are actually present lots of times in the global document. But, as I said > before, images are not responsible for the huge size of the PDF alone, as > when I remove them the PDF is still 21 MB. > I'm afraid I am not at liberty to divulge the PDFs I'm referring to but > I'll > see if I can manage to generate a dummy one. That may not be easy. > > > > -- > View this message in context: > http://apache-fop.1065347.n5.nabble.com/reduce-size-of-PDF-generated-with-FOP-tp38619p38648.html > Sent from the FOP - Users mailing list archive at Nabble.com. > > --------------------------------------------------------------------- > To unsubscribe, e-mail: fop-users-unsubscr...@xmlgraphics.apache.org > For additional commands, e-mail: fop-users-h...@xmlgraphics.apache.org > >
