Security Controls

You can add passwords to PDF files you create in the Create Assistant or integrated applications and prohibit or allow actions, such as printing, extracting content, and editing.

  • Select a security profile on the left, and edit on the right. Click OK to save changes.

  • Click New to name a new standard security control.

  • Click Delete to remove a security control.

  • Click Default to return supplied controls to default values and remove user-defined controls.

Set up the PDF security based on the selected encryption.

  • Encryption Strength: Select the encryption level.

The following options display regardless of the selected Encryption Strength:

  • Require password to open the document: Select this setting to enable the Open Password text box. Enter the password to require for opening the document. Use an open password (sometimes called a user password) to view PDF files. Further use of such a PDF depends on which permissions are set.

  • Use a password to restrict printing, editing, and modifying security settings of the document: Select this setting to enable the Permissions Password text box. Enter the password to require for altering the document. Use a permissions password (sometimes called a master or owner password) to view and use a PDF freely, regardless of permissions settings. You can also modify, remove or add permissions settings. Before setting permissions, you must supply and confirm a permissions password and specify the encryption strength: 40-bit, or 128-bit. Encryption strength determines which permissions are available.

The following options may depend on the actual Encryption Selection.

  • If you selected 40-bit (standard), you may simply select any of the following settings to block respective functionality:

    • Prevent Printing

    • Prevent Copying or Extracting

    • Prevent Annotating and Editing Form Fields

    • Prevent Altering the Document

  • If you selected 128-bit, then more sophisticated security options appear:

    • Allow Content Access for Visually Impaired: This setting is selected by default. It is enabled only if the "Allow Content Copying and Extraction" setting below is selected.

    • Allow Content Copying and Extraction: This setting is enabled only if the Permissions Password is specified.

    • Changes: Select the level of changes to grant with the Permissions Password.

    • Printing: Select the level of printing to grant with the Permissions Password.

  • Be sure to note the passwords you assign; without them you cannot reopen PDF files that you create. Successful PDF protection depends on good password management.

  • Not all PDF versions support encryption above 40-bits. See About PDF Versions.

  • PDF Create usually creates standard PDF files that can be viewed, printed, searched and modified in a PDF editor. If some actions are prohibited and a user cannot supply the correct permissions password, the PDF may appear as image-only.