Flatten PDF giving object reference for particular PDF

Hi Team,
When converting to Flatten file 2.pdf and 3.pdf are not converting, where as 1.pdf and 4.pdf are converting fine.

flatten issue.png (14.6 KB)

PDF Files:
3.pdf (418.0 KB)
2.pdf (696.8 KB)
1.pdf (239.8 KB)
4.pdf (398.8 KB)


We have logged following issues in our issue tracking system for your files after replicating the problem using Aspose.PDF for .NET 20.7:

  • PDFNET-48596 (2.pdf)
  • PDFNET-48597 (3.pdf)

We will further look into details of the scenario and keep you posted with the status of issue resolution. Please be patient and give us some time.

We are sorry for the inconvenience.

Hi @asad.ali,
can I know the status of this ticket.


We are afraid that the issues logged earlier are not yet resolved due to other pending issues which were logged previously. We will surely let you know as soon as we have some significant updates regarding their resolution. Please give us some time.

We apologize for the inconvenience.

Hi @asad.ali,
Okay, no issues. Let us know when they are resolved.


We will surely post an update in this forum thread once the issues are resolved.

The issues you have found earlier (filed as PDFNET-48597) have been fixed in Aspose.PDF for .NET 22.9.