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Error "Adobe Acrobat cannot open the file attachment settings because your PDF file attachment settings do not allow this file type to be opened"
Is it possible to restrict download and print of PDF files in SharePoint online? - Microsoft Community Hub
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Outlook PDF preview error: This file cannot be previewed because there is no previewer installed for it - Microsoft Support
![Outlook PDF preview error: This file cannot be previewed because there is no previewer installed for it - Microsoft Support Outlook PDF preview error: This file cannot be previewed because there is no previewer installed for it - Microsoft Support](https://support.content.office.net/en-us/media/280433d1-6eb5-4b2c-b0b7-7ca177b93c41.png)