Hi, We have an issues during Pdf->Pdf/a conversion: 1. File 1720.Pdf. Exception 'System.InvalidCastException: Unable To cast object of type '?' 2. File 1721.Pdf. Output does not look like the input document. A lot of b…...Pdf to pdf/a conversion issues Aspose.PDF Product Family uaprogrammer...issues during pdf->pdf/a conversion: 1. File 1720.pdf. Exception...