# Classification of PDF files

Go to the **"Documents"** menu item and click **"List of unclassified"**.

Go to the viewing mode by clicking the **"Classify"** button. You can use the **Next** and **Previous** buttons to move from file to file.

[![2021-11-05_09-54.png](https://doc.puq.info/uploads/images/gallery/2021-11/scaled-1680-/RC22021-11-05-09-54.png)](https://doc.puq.info/uploads/images/gallery/2021-11/RC22021-11-05-09-54.png)

In order to classify a document, select the counterparty and the type of document.  
Then click the **"Save"** button.

##### Document types

There are currently 3 types of documents:

1. [invoice](https://doc.puq.info/books/en-whmcs-cf-manual/page/viewingediting-an-invoice "Viewing/Editing an Invoice")
2. [agreement](https://doc.puq.info/books/en-whmcs-cf-manual/page/viewingediting-the-agreement "Viewing/Editing the Agreement")
3. [annex](https://doc.puq.info/books/en-whmcs-cf-manual/page/viewingediting-an-annex-to-the-agreement "Viewing/Editing an annex to the Agreement") (used to correct / overwrite contract parameters)