Hi Tilal, I am continuing to evaluate Aspose.Pdf for .NET 10.4.0.Currently I have slightly modified the code to convert files to pdf/a 1b while trying to produce the smaller file size possible.The code used is the follo…...Optimized PDF to PDF/A 1b conversion problems Aspose.PDF Product...Aspose.Pdf.Document document = new Aspose.Pdf.Document(infile);...