Disable JavaScript in Adobe Acrobat or Adobe Reader

If you open PDFs using Adobe Acrobat or Adobe Reader, please be advised that a default preference setting that lets JavaScript programs execute automatically poses a security risk to your Mac and should be disabled.

The following screenshot shows the JavaScript preference setting in Adobe Reader 8.


With JavaScript enabled, a maliciously-crafted PDF could wreak havoc on your Mac when it is opened by Acrobat or Reader. While you can avoid the JavaScript risk by changing your default PDF application to Preview, as noted in episode 194 of the NosillaCast podcast, Preview is not immune from its own set of security flaws.


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