Security tab
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.
Selecting the Use Security checkbox will turn on the security options and apply them to the PDF.
Encryption Strength
- low: use the 40 bit option only if the recipient is using Acrobat 4 or older.
- high: (recommended) use this if you need the strongest possible encryption and that the user of the PDF has or has access to Acrobat 5.0 or greater.
Restrictions can be set such that users of the PDF cannot:
- view the document without password: this option will force the user of the PDF to enter a password before Acrobat will allow it to be viewed.
Note: There are programs available to crack the password. The longer the password, the harder it is to crack. Please consider this when selecting a password.
- copy text and graphics from the document: this option is useful if viewing is allowed but content copying should be restricted.
- print the document: select this option if printing the PDF is not allowed.
- change the document: select this option if deleting pages, inserting pages or otherwise altering the PDF is not allowed.
- add or change comments and form fields in the document: select this option changing annotations or forms is not allowed
Note: Acrobat requires a password to change security settings on a PDF. Without this password, users can remove the restrictions placed on documents thereby defeating the purpose of adding security. pdfFactory will automatically generate a master password for you by default to enforce the security provisions. If you want to specify your own master password, go to the Settings tab and select the "Allow Master password" option. You will then see an option to set the master password on the Security tab.
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