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? -- Erik Brangs Deutsche Nationalbibliothek Fachbereich Metadaten | IT Adickesallee 1 60322 Frankfurt am Main Telefon: +49 69 1525-1850 Telefax: +49 69 1525-1799 mailto:[email protected] https://www.dnb.de
