I want to add an Annotation into a signed PDF using Aspose PDF ver. 21.11.0.0.
After adding the Annotation to the PDF and open in an adobe reader, it will show the message “At least one signature requires validating”.
…...validating" After adding annotation Aspose.PDF Product Family...Family pdf-text-annotation , digitally-sign-pdf , aspose-pdf-net NourKhashan...