The "Encrypt All Document Contents Except Metadata" option is useful when the PDF document being encrypted might be searched with a tool that examines XMP metadata.
For Acrobat, neither Adobe PDF iFilter nor the Find or Advanced Search commands in the Acrobat application examine a PDF document's XMP metadata.
I forgot pw which I activated for my documents to protect. I just wanted block editing them but I also blocked "save" button. Now I want to remove it but I forgot my pw. Is there a way to learn my pw or remove it permanently?
Europe, Middle East and Africa