Error: “Stapler has encountered an unsupported file type.”

Applies to:

  • All versions of Revu


The following Stapler error appears when trying to open a file:

“Stapler has encountered an unsupported file type. Check the Settings to make sure a necessary converter has not been disabled.”


The file you are trying to open may be a .zip file, which cannot be opened in Revu. To find out if it’s a zipped file:

  • Look at the file extension for a .zip at the end of the file name; or
  • Go to Windows File Explorer, right-click the file and select Properties. At the top of the Properties window, you will see the file type displayed.


If you confirm that it is a .zip file, right-click on it and select one of the available options for extracting the PDF to a location on your hard drive. Please refer to the help documentation for your archive or compression utility for more details about how to extract the contents of a .zip file.

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