Acrobat: Protecting PDF Documents
You can apply several security features to your pdf document.
A Watermark is a mark on a pdf document that cannot be changed by anyone else.
Encryption allows you to protect your document to prevent others from editing it without the proper authentication.
- Password Encryption - Password Encryption allows you to protect your pdf file so that a password will be needed to open the file.
- Certificate Encryption - Certificate Encryption allows you to protect your pdf file so that a specific key is needed to open and edit the file.