I use the stamp and digital signature to verify pdf documents. After this, Adobe asks me to save the changes. I have always used "save as" and then saved the document to indicate its been verified. However, today, I cannot save or save as any documents that i have signed. Adobe takes me through the process but what i have in the folder is a document unrecognisable in any format with half the name removed.
original pdf : Laptop_PMNT (openable, readable and editable by adobe) The adobe pdf file symbol indicates that it is a pdf.
Post stamping and digital signature,Saved as: Laptop_PMNT_ss
Resulting file saved on microsoft 365 : Lapto (not reopenable, letters chopped off the original name) Empty rectangle indicating it is an unknown file type. Asks me to search the microsoft store to find a suitable programme to open the file. Microsoft has no suggestions.
Crash or freeze
Edit and convert PDFs
Security digital signatures and esignatures