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Convert PDF to PDFA using Aspose.PDF for .NET | Adobe Reader shows error on opening the output


After converting the attached file, we are faced with an Adobe Reader error when opening it image.png (5.4 KB)

Actual result

The error occurs when the converted file is opened

Expected result

File is converted to any PDF/A standard and it is possible to open it without error


  • input.pdf (801.6 KB) – the original file
  • result.pdf (813.9 KB) – the resulted file
  • Program.zip (645 Bytes) – the example of the code for conversion

Please, note, we are using:
Aspose.Pdf v.

Could you please advise us with the current behavior?

Best regards,



We have been able to replicate the issue in our environment using Aspose.PDF for .NET 21.3. We have logged it as PDFNET-49622 in our issue tracking system for the sake of further investigation. You will surely be notified as soon as the logged issue is resolved. Please be patient and spare us some time.

We apologize for the inconvenience caused.

Hi, could you please provide an update on this issue?



Sadly, the above-logged ticket has not been yet resolved. We will surely investigate and fix it on first come first serve basis and inform you once we have some updates about its resolution. Please spare us some time.

We are sorry for the inconvenience.