Thanks, I'll give it a try! On Wed, Jan 11, 2017 at 12:03 AM, Tilman Hausherr <[email protected]> wrote:
> Am 10.01.2017 um 23:37 schrieb Gilad Denneboom: > >> Hi all, >> >> I'm trying to manipulate an existing image in my PDF file (double it in >> size, for example), but I'm coming up short-handed... Any tips on how to >> approach this using PDFBox? Is it at all possible? >> >> Thanks in advance! >> >> > The easiest way would be to edit the PDF. Run WriteDecodedDoc to get an > uncompressed PDF, find where the image is invoked, then change the "cm" > parameters just before the image is invoked. Usually the cm command is like > this: > > width 0 0 height xpos ypos cm > > (You can also view it with PDFDebugger, but you can't change it) > > > if you edit the PDF make sure that the offsets stay identical. (position > of "endstream") > > > When done, open the PDF with Adobe Reader and save it. It will be > compressed again. > > > Tilman > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > >
