- Document versioning.

  - Store many versions of the same document, download or revert to a
    previous version.

- :doc:`Non destructive page remapping and disabling <releases/4.0>`.

  - Change the order of the pages of the files uploaded to a document or
    disable them to remove them from view. Pages from multiple document files
    can also be joined or appended to create multiple document versions from
    the same set of files.

- Multi page document support.

  - Multiple page PDF, office files, and TIFF files are supported.
