The PDF Password Recovery can be used to decrypt protected Adobe Acrobat PDF files, which have "owner" password set, preventing the file from editing (changing), printing, selecting text and graphics (and copying them into the Clipboard), or adding/changing annotations and form fields.
Decryption is being done instantly. Decrypted file can be opened in any PDF viewer (e.g. Adobe Acrobat Reader) without any restrictions -- i.e.
with edit/copy/print functions enabled. All versions of Adobe Acrobat (including 5.x,6.x,7.x which features 48-bit,128-bit and AES encryption) are supported.
Supports PDF1.6 protocol (Acrobat 7.x).
Removing restrictions on printing, editing, copying.
Supports Adobe Standard 40-bit Encryption and Adobe Advanced 128-bit
Supports AES encryption.
Batch processing on many files.
Easy to use.
Does NOT need Adobe Acrobat software.
Set the document title, subject, author, keywords, creator to the decrypted PDF file(s).
OK, so you want to stamp your document. Maybe you need to give reviewers some advice about the document's status or sensitivity. This tip from author Ted Padova demonstrates how to add stamps with the Stamp Tool along with related comments.