1. Open the Preferences dialog box in Acrobat or Acrobat Reader:
Clicking an unknown link to a website poses a security risk to your device. Malicious websites can transfer harmful content or silently gather data. To avoid such security risks, you can configure Acrobat and Acrobat Reader to display a warning when a PDF attempts to connect to an Internet site.
You can allow Acrobat and Acrobat Reader to contact selected websites by adding their URLs to the list of trusted websites in the Trust Manager preferences. Alternatively, you can allow all URLs.
1. Open the Preferences dialog box in Acrobat or Acrobat Reader:
2. In the Preferences dialog box, select Trust Manager in the Categories on the left and then click Change Settings.
3. The Manage Internet Access dialog box is displayed.
If the options in the Manage Internet Access dialog box are disabled, select Custom Setting. If options are still disabled, your product could be under an administrator’s control with those restrictions in place.
4. In the Manage Internet Access dialog box, choose from the following options:
Click OK to apply the changes.
5. Select Ok to close the Preferences dialog.
If you're prompted to allow or block a URL when you open a protected PDF, select Remember My Action For This Site to add the URL to the list.