Adding security to PDF files
When saving artwork in PDF, you can add password protection and security restrictions, limiting not only who can open the file, but also who can copy or extract contents, print the document, and more. You can set the following options in the Security section of the Adobe PDF Options dialog box: Encryption Level Illustrator uses the RC4 method of security from RSA Corporation to password-protect PDF files. Depending on the Compatibility setting (in the General section), the encryption level will be high or low. Require a password to open the document Requires anyone who tries to open the PDF file to enter the password you specify. Document Open Password Sets the password to protect the PDF file. This option is only enabled when the previous option is selected. Note: If you forget a password, there is no way to recover it from the document. It's a good idea to store passwords in a separate secure location in case you forget them. Use a password to restrict editing Security and Permissions settings Restricts access to the PDF file's security settings. If the file is opened in Adobe Acrobat, the user can view the file but must enter the specified Permissions password in order to change the file's Security and Permissions settings. If the file is opened in Illustrator, Photoshop, or InDesign, the user must enter the Permissions password, since it is not possible to open the file in a view-only mode. Permissions Password Sets the password to protect the PDF file. This option is only enabled when the previous option is selected. Printing Allowed Specifies the level of printing that users are allowed for the PDF document. Changes Allowed Defines which editing actions are allowed in the PDF document. Enable copying of text, images, and other content Allows users to copy and extract content from the PDF. This option is only available for high (128-bit RC4) encryption. Enable text access of screen reader devices for the visually impaired Allows users to access content using software tools for the visually impaired. This option is only available for high (128-bit RC4) encryption. Enable plaintext metadata Allows users to copy and extract content from the PDF. This option is only available when Compatibility (in the General section) is set to Acrobat 6.0 (PDF 1.5). Enable copying of text, images, and other content and access for the visually impaired Allows users to copy and extract content from the PDF, as well as access content using software tools for the visually impaired. This option is only available for low (40-bit RC4) encryption. |