Security

The Security tab allows setting options for securing PDFs. Options include password protection for opening the document and restrictions on what can be done with the PDF once open.

To use PDF security check Use PDF security.

Access password - set the document encryption method to protect PDF document

• low - use 40-bit encryption (used for Acrobat 3.0 and above)
• high - use 128-bit encryption (used for Acrobat 5.0 and above)

Do not allow users to ...

• view document without this password - ask for password every time when PDF document is open. You must type password in both password and confirm password boxes.
• copy text and graphics from document - disable copy text and graphics from PDF document
• print document - disable print for PDF document
• change document - PDF document modify is not allowed
• add or change comments and form fields in document - disable change comments and form fields in PDF documents