Adobe 22002484 User Guide - Page 217

USING ACROBAT 9 STANDARD 212 Security Restore Default List Of Allowed And Disallowed File Attachment Types Removes saved settings you chose for opening attachments. For example, if you chose to always open TMP attachments when prompted, TMP appears in the list of allowed file attachment types. By clicking Restore, you remove TMP from the list. The Restore button is available only if you changed the attachment defaults. Change Settings (Internet Access From PDF Files Outside The Web Browser) When clicked, lets you specify the default behavior for accessing the Internet from PDFs. To restrict access to only the URLs you specify, select Let Me Specify A List Of Allowed And Blocked Web Sites (the default). To allow access to all URLs, select Allow All websites. To restrict access with all URLs in PDFs, select Block All Web Sites. Note: If the options in the Manage Internet Access dialog box are dimmed, select Let Me Specify A List Of Allowed And Blocked Web Sites. If options are still dimmed, your product could be under an administrator's control with those restrictions in place. To specify a list of allowed and blocked websites, type each URL in the box, and click Allow or Block. Then, specify the default behavior for Acrobat for websites that are not in the list. Note: If you open a protected PDF and receive a prompt to allow or block a URL, select Remember My Action For This Site. This reply adds the URL to this list. Load Trusted Root Certificates From An Adobe Server Allows Acrobat to automatically download trust settings from an Adobe server. Ask Before Installing When selected, prompts the user when new root certificates are downloaded from Adobe. Click Update Now to check for and install new root certificates immediately. Open secured PDFs Documents can be secured in several ways. To view the security settings of a document, open the Security tab of the Document Properties dialog box. If you have trouble opening a PDF, or if you're restricted from using certain features, contact the author of the PDF. Password protection A password-protected PDF either requires a password to open or a password to change or remove restricted operations. If a document has restricted features, any tools and options related to those features are dimmed. Restricted If a document is restricted, encrypted, or has a special status, the Security Settings icon appears to the left of the document. Click the icon to display the Security Settings pane to see which features are restricted. Digitally signed When a document is digitally signed, the digital signature status appears in the document message bar above the document. A digital signature helps assure the recipient that the document content is valid. Certified Certifying a document assures recipients that the document is authentic. Certifying signatures also include information to allow or disallow particular actions, such as filling in forms and modifying the document. A document with a valid certificate displays a Blue Ribbon icon . When you submit a certified form, you are assured that it is going back to the valid author. More Help topics "Digital signatures" on page 238 "Securing documents with passwords" on page 216 "Certificate security" on page 218 Last updated 9/30/2011