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PDF-conversion => deleted annotations


we’re using Aspose.PDF [.NET] to convert various kind of files to PDF/A.

We are facing some problems in converting annotated PDF files to PDF/A-3B.
Currently we’re upgrading from Aspose.PDF v. to v.

Behaviour in Version

  • The output log shows a violation of clause 6.5.3 for the HighlightAnnotations
  • The output log doesn´t contain any violation errors for the StampAnnotations
  • HightlightAnnotations and StampAnnotations remain in the outcomming PDF/A file

Behaviour in Version

  • The output log shows a violation of clause 6.5.2 for HighlightAnnotations and StampAnnotations
  • HighlightAnnotations and StampAnnotations are deleted in the outcomming PDF/A file

We’re using your sample code from Convert PDF File To PDF/A with the option “ConvertErrorAction.Delete”.
I can’t find information in the PDF/A standard documentation that annotations are prohibited.

Also other products (like Adobe Preflight and the 4Heights PDF/A validator) don’t show any violations for annotations.

Is there a reason why Aspose deletes annotations during the conversion to PDF/A?

Could you provide us a solution for the problem?
We do need the annotations in the PDF/A document.

Best regards

Hi Claudia,

Thanks for your inquiry. We have already noticed the reported issue and logged a ticket PDFNEWNET-38909 in our issue tracking system for investigation and rectification. We have linked your query to the issue ID and will notify you as soon as it is resolved.

We are sorry for the inconvenience caused.

Best Regards,

Hi Tilal,

since our customers are experiencing serious problems with this issue I would like to ask whether there is any news on the solution.


Hi Claudia,

Thanks for your inquiry. I am afraid your reported issue is still not resolved, as our product team is busy in investigating/fixing other issues in the queue, reported earlier. However we have recorded your concern and requested our product team to complete the analysis and share an ETA at their earliest. We will notify you as soon as we made some significant progress towards issue resolution.

Thanks for your patience and cooperation.

Best Regards,

The issues you have found earlier (filed as PDFNEWNET-38909) have been fixed in Aspose.Pdf for .NET 11.1.0.

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