> For the complete documentation index, see [llms.txt](https://docs.castmill.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.castmill.com/content/uploading-content.md).

# Medias

Castmill support most media types out there for images, videos, pdfs and audio files. All medias are handled in the Medias tab, where you can upload, preview and organize them.

{% hint style="info" %}
If you find a media file that is not compatible with Castmill, please [contact us](/getting-started/support.md) since we are always adding new formats by request.
{% endhint %}

The first time you enter Castmill it will appear empty until you start uploading content:

![The medias page](/files/-M_PfFFFfB9mzEvS0bWp)

Just click on "Update Medias" to upload the content you want. A dialog will open and you can choose as many media files as you want in one go:

![](/files/-M_Q-Udp-niBR8qL-xaC)

![](/files/-M_Q-9ZBMncaZOkrKkZj)

Click OK and now you can see the list of files ready to upload:

![](/files/-M_Q-g8ZhHQbkwCHwGlI)

The files will upload as soon as you click the "Upload" button:

![](/files/-M_Q-t8e3D1eKJ3MG9a-)


---

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