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Turn on sandbox protection
Last updated on
Sep 17, 2026
Learn how to turn on sandbox protection in Adobe Acrobat to help isolate PDFs from your system.
Sandbox protection runs PDFs in a restricted environment that limits their ability to access your files, registry, and other system resources. This security feature helps protect against malicious code embedded in PDF documents. Adobe recommends turning it on if it isn't already turned on.
Select Security (Enhanced) from the Categories list.
Select Enable Protected Mode at startup.
Select OK, and then select Yes in the confirmation dialog box.
Restart Acrobat for the changes to take effect.
Caution
Turn off the sandbox protection only when required for specific workflows, as it provides essential security.
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