[grace-baker Hexnode 26 November 2019 grace-baker Moderator]

Hey, Thanks for reaching out.

Hexnode can lock down the device to a single PDF file.
The file that has to be displayed should be uploaded under Admin–>File Management and a shortcut for the PDF file has to be created in the Apps tab.
Kindly navigate to policies –>new policy. Click on the Kiosk Lockdown–>Android Kiosk Lockdown–>Single App–>Configure. Move the mouse pointer towards the + icon and click on Select file shortcut. Select the required PDF shortcut from the list > Done. Please note to associate targets and save the policy.
We currently do not have an option to lock down the device to a single PPT.

PS: The File should be present on the device. If the PDF file is not present on the target device, you can push the file via File Management policy.

Kindly refer to the link for detailed guidance on the same.

Cheers!
Grace Baker
Hexnode MDM