Adobe 22002486 Digital Signature User Guide - Page 146
Internet URL Access
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Acrobat 9 Family of Products Security Feature User Guide 5. Choose OK. Figure 103 Resource access External Content and Document Security Internet URL Access 146 9.7 Internet URL Access Your application can inform you when a PDF file is attempting to connect to an Internet site. Opening a Web page represents a security risk because malicious content can be transferred whenever the application communicates with the Internet. In addition to visible links in a PDF document, form fields can contain hidden JavaScript calls that open a page in a browser or silently requests data from the Internet. Tip: This feature interacts with the new Security (Enhanced) preference feature. URLs that are set as privileged locations are exempt from enhanced security restrictions even if enhanced security is on. You can control Internet access via the Manage Internet Access dialog (Figure 105). Controls are provided for the following: "Turning Internet Access Off and On" on page 146 "Allowing and Blocking Specific Web Sites" on page 147 9.7.1 Turning Internet Access Off and On To block or allow all Web sites: 1. Choose Edit > Preferences (Windows) or Acrobat > Preferences (Macintosh). 2. Select Trust Manager in the Categories panel. 3. Choose Change Settings in the Internet Access... panel. Figure 104 Internet access panel 4. Choose Allow all web sites or Block all web sites (Figure 105). 5. Choose OK.