PDF Security Settings

When saving recognized text to PDF format you can use passwords that will prevent the PDF document from being opened, printed or edited.

The passwords and other restrictions are set in the PDF Security Settings dialog. To open this dialog, click the PDF Security Settings button on the PDF tab of the Formats Settings dialog.

You can specify a Document Open password or/and Permissions password.

Document Open password

A Document Open password prevents the users from opening the PDF document unless they type the password specified by the author. If you wish to add this password to your PDF document:

• Select the Require password to open document option, click and in the the Enter Document Open Password dialog, type in the password and confirm it. The password you specified will be displayed with dots in the Document Open password field.

Permissions password

A Permissions password prevents the users from printing and editing the PDF document unless they type the password you specify. If some security settings are selected for the document the users will not be able to change these settings until they type the password you specify.

If you wish to add this password to your PDF document:

• Select the Restrict printing and editing  the document and its security settings option, click and in the the Enter Permissions Password dialog, type in the password and confirm it. The password you specified will be displayed with dots in the Permissions password field.

You can also enable or disable printing, editing or copying your PDF documents. These restrictions are defined in the Permissions settings group.

• The Printing allowed drop-down list enables/disables printing for the PDF document.
• The Changes allowed drop-down list specifies which editing actions are allowed in the PDF document.
• The Enable copying text, images and other contents option allows the users to select and copy text, pictures, etc. from your PDF document. If you wish to prevent the users from copying the content of the document, make sure that this option is cleared.
• The Encryption level drop-down list specifies the type of encryption for a password-protected document. The list allows you to select one of the three levels: the Low (40 bit) - compatible with Acrobat 3.0 and above item sets a low (40-bit RC4) encryption level; the High (128 bit) - compatible with Acrobat 5.0 and above item sets a high (128-bit RC4) encryption level, but Acrobat 3.0 users cannot open PDF documents with this encryption level; the High (128 bit - AES) - compatible with Acrobat 7.0 item sets a high (128-bit AES) encryption level, but Acrobat 6.0 (or earlier) users cannot open PDF documents with this encryption level.