Does your product offer a Microsoft Reporting Services extension that can Digitally Sign PDF’s? If not have you seen customers take another approach for PDF’s generated via Microsoft Reporting Services?
There is no way to digitally sign a PDF with Aspose.Pdf for Reporting Services API. We have already logged a feature request under the ticket ID PDFRS-33298 in our issue tracking system. We have linked your post to this ticket and will keep you informed regarding any available updates.