# About the External Viewer

The external viewer, accessed using a direct link, allows users outside of your organization to view and download the documents Vault users share with them. 

## Using the External Viewer

You can send documents to non-Vault users [using Send as Link](/en/lr/4754/). Once non-Vault users click the link, they can view the documents as they appear in Vault.

The external viewer provides rotate, zoom, and fit to height/width tools to change the document view. 

Vault adds any download events to each [document's audit trail](/en/lr/517/).

## Limitations

The following limitations apply to the external viewer:

  * **Download All** is unavailable when non-Vault users view one (1) document or more than 50 documents at one time. They must individually download single documents or document sets larger than 50.
  * **Download All** is unavailable on mobile browsers.