Hello everyone, we're using PDFBox to import annotations from XFDF files and add them to existing PDF files.
First we create a FDFDocument from the XFDF, then we fetch the list of FDFAnnotations from it via < FDFDocument>.getCatalog().getFDF().getAnnotations() Then we iterate over this list, create PDAnnotations from the COS objects of the FDFAnnotation with PDAnnotation.createAnnotation() and add the PDAnnotation to the list of page annotations we got from PDPage.getAnnotations() For most PDFs and most XFDF files, this works without any issues. However, some PDF files with merged annotations, when opened in Adobe Reader, produce a huge number of popups with the message "Expected a name object" / "Namensobjekt wurde erwartet" before the PDF is fully rendered, while the original file does not show such a behaviour. When such PDF files are opened in Foxit PDF Reader or PDFDebugger, they are rendered just fine without errors. We saw this happen every now and then over the years, with all PDFBox V2 versions, including 2.0.29, but it appears to have become more frequent recently, so user complaints are becoming more frequent too. As I'm unable to share sample PDFs/XFDFs due to compliance reasons, I just have the question if anyone happens to have some hints what I could look for in an affected PDF (preferably using PDFDebugger) to find out what Adobe Reader doesn't like ? Ideally, I then can try to compare it with the original and find the part of the process which "breaks" the result. Thanks in advance, Kai [cid:image001.png@01D9C45C.B9E94C50]<https://thinkproject.com/de/> Kai Keggenhoff / Senior Software Developer thinkproject.com <https://thinkproject.com/de> [cid:image002.png@01D9C45C.B9E94C50]<https://www.linkedin.com/company/thinkproject-dach/posts/?feedView=all>[cid:image003.png@01D9C45C.B9E94C50]<https://twitter.com/thinkproject_> Read our legal information (imprint) here<https://thinkproject.com/de/impressum/>.
