# About the Unmodified Source Rendition File

Some Vault document features can modify a document after you upload it to Vault. For example, they can replace Merge Field tokens in the source document with information from document fields or insert an automatically-updating link. If you need to view or restore the original source document, you can use the _Unmodified Source_ <a href="/en/gr/3037/">standard rendition type</a> to download the unaltered source file that was originally uploaded. The stored _Unmodified Source_ exists as it was prior to any modifications performed by Vault.

Vault Owners can use the _Unmodified Source_ files for sanity-checking or restoration. The _Unmodified Source_ is made available once per document version the first time that the source file is modified. Any subsequent modifications within the same version do not generate additional _Unmodified Source_ files.

## Downloading the Unmodified Source Rendition File

To download a document's _Unmodified Source_ file from a Doc Info page, click the arrow on the right of the Download button.

By default, Vault documents that use any of the following features have an _Unmodified Source_ rendition file available for download:

  * <a href="/en/gr/30965/">Merge Fields for Microsoft Word and Microsoft Excel</a>

<div class="note-border alert-info">
  <div class="alert alert-info" role="alert">
    <div><i class="far fa-info-circle"></i></div>
    <div class="alert-text">
      <p><strong>Note</strong>: Unmodified Source files are available for documents modified after the 20R1 release.</p>
    </div>
  </div>
</div>



## Related Permissions

<table class="wbord">
  <tr>
    <td>
      <p>
        <strong>Type</strong>
      </p>
    </td>
    <td>
      <p>
        <strong>Permission</strong>
      </p>
    </td>
    <td>
      <p>
        <strong>Controls</strong>
      </p>
    </td>
  </tr>
  <tr>
    <td>
      <p>
        Security Profile
      </p>
    </td>
    <td>
      <p>
        Vault Owner: All Document Actions
      </p>
    </td>
    <td>
      <p>
        Ability to view the document assigned to the Unmodified Source rendition type.
      </p>
    </td>
  </tr>
</table>