Adobe Reader - Prevent PDF files from connecting to websites (to share or get information)
You can configure Adobe Reader too prevent PDF files from connecting to websites to share or get information:
Open Adobe Reader.
Click on the Edit menu > Preferences.
Scroll to the Trust Manager Section
In the "Internet Access from PDF files outside the web browser" section, click on the "Change Settings" button.
Select "Block PDF files' access to all web sites"
Save your settings.
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