Impossible? Nothing (:*mostly* nothing:) is impossible, it's just a matter of how much programming it will require! :)
I've used perl scripts to check/regenerate the xref table after I used a text editor to twiddle objects... on one level, the PDF file is just text... In the simple case, one could write a script that iterated over the files, renumbering all the object ids, replacing the references, concatenating all the pieces, and building a combined xref table at the end. I think the output could be streamed, and the files would not need to be kept in memory. Of course, there are those *non*-simple cases which seem to comprise the bulk of PDF examples... On Fri, Jun 5, 2015 at 11:14 AM, Morris, Mark <[email protected]> wrote: > Since I’ve gotten no response, is it safe to assume this is something > that’s architecturally impossible? > > Thanks, > Mark > > > On Jun 3, 2015, at 11:12 AM, Morris, Mark <[email protected]> > wrote: > > > > Hello! I’m generating multiple pdf documents using a commercial tool, > then merging them into one document to deliver to the user. This all works, > but I’m trying to reduce the memory footprint, and the current approach > builds everything in memory. > > > > So I wondered if this is possible: Create a document that streams to a > file, then keep concatenating more pdf documents to the end, without > needing to have the whole thing in memory at any time. I’ve looked through > the API and didn’t see a way, but it’s new to me so I’m sure I could have > missed something. > > > > Thanks for any assistance! > > > > Regards, > > Mark > >
