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Álison Fernandes commented on PDFBOX-1822: ------------------------------------------ To clarify, I consider this to be different problems [~tchojecki]. I'm not trying to digitally sign a previously manipulated PDF, I'm doing a 3 step process: Manipulate, save, sign the saved file. What triggers me to blame PDDocument.save(...) was doing the following steps, provided a *original.pdf*: *Case 1:* * Sign *original.pdf* * Adobe Reader validates the signature *Case 2:* * Load *original.pdf* to a PDDocument * Save *original.pdf* to a temporary file * Sign the temporary file * Adobe Reader reports that the byte range is invalid If you need further info, we can discuss it in the mailing list as you've stated. > Signature byte range is Invalid > ------------------------------- > > Key: PDFBOX-1822 > URL: https://issues.apache.org/jira/browse/PDFBOX-1822 > Project: PDFBox > Issue Type: Bug > Components: Parsing, PDModel, PDModel.AcroForm, Signing > Affects Versions: 1.8.3, 1.8.4, 2.0.0 > Reporter: vakhtang koroghlishvili > Attachments: araxis-merge - compare two document.jpg, > damaged-sig.jpg, unsigned-signed.pdf, unsigned.pdf > > > On person send me a unsigned PDF document. He wanted to sign it. When I try > to sign it (using pad box), I have some problem. > After signing adobe reader tells me "The signature byre range is invalid". > I will attach original and signed document. > I think, it is PDF box parser error. another signature libraries sign > document very well. I'm searching the problem at the moment, in order to fix > it. -- This message was sent by Atlassian JIRA (v6.1.5#6160)