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Is Adobe reader protected mode on?
However if you know that attachments and links aren’t malicious, and the PDF files are from a trusted source, then you can disable protected reader mode to fully use the PDF.
However if you know the attachments and links aren’t malicious and from a trusted source you can disable this and use the PDF document full-scale.
Let’s disable Adobe Reader protected mode.
- Go to Start and search for Adobe Reader,
- Open Adobe Reader,
- Click CTRL + K or go to Preferences,
- Go to Trust Manager in Categories,
- Check ‘Allow opening of non-PDF file attachments with external applications’.
See the screenshot for reference.
Are you also using Foxit Reader?
Then please follow this URL: