## Encrypt dialog

This dialog appears when you click the Setting button after checking the Encrypt checkbox in the Export to PDF dialog. It helps you to configure the encryption settings for the PDF file. See the dialog.

The following are details about options in the dialog:

Comparability

Specifies the encryption type to encrypt the PDF document. The option Acrobat 3.0 and later uses a low encryption level (40-bit RC4), while the other option Acrobat 5.0 and later uses a high encryption level (128-bit RC4).

Encryption level

Shows the level of the encryption comparability that you specified in the Comparability drop-down list.

Options

Specifies options for the encryption you defined for the PDF file.

- Require a password to open the document
  Specifies whether the document is password protected. If checked, set the password here.
  - Document Open Password
    Specifies the password to prevent users from opening the document without authorization.
  - Confirm Password
    Confirms the password you specified in the Document Open Password text box.

Permissions

Sets permissions for the encryption that you specified for the PDF file.

- Use a password to restrict printing and editing of the document and its security settings
  Specifies whether to use a permission password to restrict users from printing and editing.
  - Permission Password
    Specifies the password to restrict users from printing and editing.

    Note: The password here cannot be the same as the one used for opening the document.

  - Confirm Password
    Confirms the password you have specified in the Permission Password text box.
  - Printing Allowed
    Specifies the printing quality for the PDF document.
    - None
      Not allowed prevents users from printing the document.
    - Low Resolution
      Available only when a high encryption level - Acrobat 5.0 is selected. If checked, users can print the document at no higher than 150-dpi resolution. Printing may be slower because each page is printed as a bitmapped image.
    - High Resolution
      Lets users print at any resolution, directing high-quality vector output to PostScript and other printers that support advanced high-quality printing features.
  - Changes Allowed
    Specifies what editing actions are allowed in the PDF document.
    - None
      Prevents the user from making any changes to the document, including filling in signature and form fields.
    - Inserting, deleting, and rotating pages
      Available only when a high encryption level - Acrobat 5.0 is selected. If checked, users can insert, delete, and rotate pages, as well as create bookmarks and thumbnail pages.
    - Fill-in form fields and signing
      Lets users fill in forms and add digital signatures. This option doesn't allow users to add comments or create form fields.
    - Commenting, filling in form fields
      Lets users fill in forms and add digital signatures and comments.
    - Any except extracting pages
      Lets users change the document using any method listed in the Changes Allowed menu, except removing pages.
  - Enable copying of text, images and other content
    Allows users to select and copy the contents of the PDF document.
  - Enable text access for screen reader devices for the visually impaired
    Available only when the Comparability option is set to Acrobat 5.0 or later Acrobat version. Checking it will enable the use of screen readers for visually impaired users.

OK

Applies all changes and closes the dialog.

Cancel

Cancels the changes and exits the dialog.

Help

Displays this help document.