> > Actually I am not meant to forge a signed PDF. > > Example: 1 pdf contains 2 pages and has signed in each pages. > > User needs to split the pdf become 2 pdf instead. > > I can managed spliting it become 2 pdf but reliazed the signature is > > missing.
> when you split a document you are altering it. This voids the > signature. Because you do not sign a page, but the whole document I believe what the OP is trying to do might be technically possible. PDF signatures can be on byte ranges of the document (as opposed to the document as a whole). As long as those parts are moved verbatim to the target pdf, the signature will remain valid. AFAIK iText doesn't support this kind of thing, and it may not even be possible depending on the specifics of the original document. ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier. Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ iText-questions mailing list iText-questions@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/itext-questions Buy the iText book: http://itext.ugent.be/itext-in-action/
