Some files cannot be converted to PDF/A.
Please find attached input file (EA.pdf) and result file (result.pdf). Result file should be pdf/a but after conversion it is in pdf format.
PS. Aspose.PDF 11.3.0 used
Thanks for contacting support.
I have tested the scenario and have managed to reproduce the same problem that PDF file is not being converted to PDF/A_1b or PDF/A_2b format. For the sake of correction, I have logged this problem as PDFNEWNET-40368. We will further look into the details of this problem and will keep you posted on the status of correction. Please be patient and spare us little time. We are sorry for this inconvenience.