> For the complete documentation index, see [llms.txt](https://help.backtrackmaps.com/backtrack-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.backtrackmaps.com/backtrack-docs/mapping/layers/image-overlay.md).

# Image Overlay

<img src="/files/MjQWpAo2ZOMSg5jpPHGW" alt="" data-size="line">

### GeoTIFF

If you upload a GeoTIFF file (already geo-referenced), it will automatically display on the map in the correct position.

### Geo-reference

If you upload a JPG / PNG file, we'll help you georeference it. Follow the instructions to select 2 matching points on the image and map. That's it!

<figure><img src="/files/2mfRblbBrujcRq3uPZgz" alt=""><figcaption><p>Geo-referencing an image.</p></figcaption></figure>

<figure><img src="/files/tSEcIk0OBCnGwNX50jf2" alt=""><figcaption><p>After geo-referencing.</p></figcaption></figure>

{% hint style="success" %}
**Supported Platforms**

Desktop

Mobile (view only)
{% endhint %}