Hi, thank you. Then I'll leave my code as it is.
> -----Ursprüngliche Nachricht----- > Von: Tilman Hausherr [mailto:[email protected]] > Gesendet: Montag, 8. Dezember 2025 15:05 > An: [email protected] > Betreff: Re: Text extraction fails because permissions are not recognized > > Hi, > > PDFBox fails with an error message related to a missing certificate, > Firefox and Chrome are unable to display it, Adobe displays it but > mentions "Zertifikatssicherheit", PDF-XChange mentions something about a > digital ID. > From what I see it is a special case that we don't support: > DefEmbeddedFile which means that only the embedded files are encrypted. > Overwriting the references to the encryption directory with blanks > (there are two) makes it possible to display with PDFBox. So your > document is legit but uses an exotic feature. > > Tilman > > Am 08.12.2025 um 10:18 schrieb Brangs, Erik: > > Hi, > > > > I'm trying to extract text from the PDF at https://d-nb.info/1015222862/34 > > using > PDFBox 3.0.6 with bouncycastle. My code uses canExtractContent() from > AccessPermission to check if text extraction should be attempted. When > attempting to > extract text, PDFBox fails with "IOException: java.io.IOException: Provided > decryption > material is not compatible with the document - did you pass a null > keyStore?". The > problem also occurs with PDFBox 4.0.0-SNAPSHOT. > > > > Adobe Acrobat can open the PDF. According to its permission display, > > assembly and > extraction of pages is not permitted. I also tried opening the document with > PDF- > XChange Viewer. PDF-XChange Viewer cannot open the document and displays an > error message that says "Error [PDF Structure 40]: Unknown/unsupported > security > handler". > > > > Is my check for text extraction wrong or incomplete? > > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected]
