No one is willing to reply? :(
Constantine On Tue, Apr 21, 2026 at 11:33 AM Constantine Dokolas <[email protected]> wrote: > I sent this to the "dev" list by mistake. Reposting to "users"... > > > Hi all! > > I'm working with a PDF that has an invalid "Annots" dictionary on a page. > The issue is that the dictionary is just an array of ints (COSInt). Because > of that, parsing the page throws this exception (this is as it appears in > the PDFBox debugging app): > > java.lang.RuntimeException: java.util.concurrent.ExecutionException: >> java.io.IOException: Error: Unknown annotation type COSInt{278} >> >> org.apache.pdfbox.debugger.pagepane.PagePane$RenderWorker.done(PagePane.java:584) >> >> java.desktop/sun.swing.AccumulativeRunnable.run(AccumulativeRunnable.java:112) >> Caused by: java.util.concurrent.ExecutionException: java.io.IOException: >> Error: Unknown annotation type COSInt{278} >> >> org.apache.pdfbox.debugger.pagepane.PagePane$RenderWorker.done(PagePane.java:569) >> >> java.desktop/sun.swing.AccumulativeRunnable.run(AccumulativeRunnable.java:112) >> Caused by: java.io.IOException: Error: Unknown annotation type COSInt{278} >> >> org.apache.pdfbox.pdmodel.interactive.annotation.PDAnnotation.createAnnotation(PDAnnotation.java:166) >> org.apache.pdfbox.pdmodel.PDPage.getAnnotations(PDPage.java:779) >> org.apache.pdfbox.rendering.PageDrawer.drawPage(PageDrawer.java:291) >> >> org.apache.pdfbox.rendering.PDFRenderer.renderImage(PDFRenderer.java:348) >> >> org.apache.pdfbox.debugger.pagepane.PagePane$RenderWorker.doInBackground(PagePane.java:546) >> >> org.apache.pdfbox.debugger.pagepane.PagePane$RenderWorker.doInBackground(PagePane.java:525) >> java.base/java.lang.Thread.run(Thread.java:1474) > > > Is there, perhaps (I don't expect there is), a way to ignore these > entries? The issue is that most PDF viewers ignore these entries, but > PDFBox crashes. > > Generally, we have difficulty explaining to our customers that PDFs must > be well-formed and standards-compliant for us to process them, but the > usual counter-argument is "but it works with Acrobat!" > I wonder if anyone has suggestions (that work IRL) on how to counter this > argument. > > Have a great day, > Constantine >
