Allow attachments to start applications

Last updated on Aug 16, 2025

Windows

Select Menu > Preferences.

Select Trust Manager under Categories.

In the PDF File Attachments section, select the checkbox for Allow opening of non-PDF file attachments with external applications.

Select OK.

Select Acrobat > Preferences.

Select Trust Manager under Categories.

In the PDF File Attachments section, select the checkbox for Allow opening of non-PDF file attachments with external applications.

Select OK.

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Restrict access to JavaScript APIs

Block or allow file attachments

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