I'm evaluating using PDF Clown in a PDF annotator app- when running the annotations sample included in the source, I found that several PDF viewers were not able to render the annotations properly:
- Sumatra PDF (based on muPDF, but it rendered a few of them that MuPDF did not)
- Windows Reader (new app included with Windows 8)
Adobe Acrobat was able to read/display the annotations properly- after opening the generated file in Acrobat and re-saving it, the annotations display correctly in the other apps mentioned above.
Any idea why this is the case?
Please open a bug tracker entry attaching the two variants (generated and re-saved) of the PDF file produced by the annotation sample, so I can evaluate their differences.