We want to automatically place stamps in a PDF document. This can be done by the Aspose.PDF API. We also want to identify our stamps, so we can update or delete those stamps. We have found the getStampId and setStampID methods (https://reference.aspose.com/pdf/net/aspose.pdf/stamp/setstampid/), but these are of type integer. This could lead to potential problems if we open a PDF document that already has identifiers on stamps. I.e., if a document has stamps with IDs 1 and 5, then we don’t know if these IDs are set by our system or someone else.
Another problem is that these IDs are not visible in Adobe Reader.
Is there a way where we can set our custom stamp properties and identifies, such as a GUID and an Environment GUID of the customer? Then we can see which stamps are set by our system or somebody else.
Another option could be to use the Author and Subject properties of a stamp because they are visible in Adobe Reader. Unfortunately, these properties seem not to be available in de Aspose PDF API.
Do you have suggestions to cope with this problem?