Split A4 PDF page into two A5 and back again

Question

I have a PDF with A4 pages. Each page contains two identical A5 pages for printing reasons. What I want to do in my Java program is to split these pages and use each unique

Answer 1

Try iText library http://itextpdf.com/. You can use existing pdf file for pattern, edit rotate and split existing documents. Usefull samples you can find here: http://www.1t3xt.info/examples/browse/