Allow attachments to start applications

Last updated on Sep 23, 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.

Try Acrobat on the web
Create, edit, and share PDFs online.

Restrict access to JavaScript APIs

Block or allow file attachments

Learn with step-by-step video tutorials and hands-on guidance right in the app.

Join discussions, find answers, learn from experts, and share your knowledge.

Access your favorite Creative Cloud apps, services, file management, and more.