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

# Static content

<mark style="color:orange;">**func=proxy**</mark>

Cloudimage offers you the option to deliver any file, including non-processable files - static content like JS or CSS files, via our Content Delivery Network.

By default, all URLs are regarded as images. To deliver a non-image file, you have to use the **func=proxy** option:

[/samples.scaleflex.com/bootstrap.css?<mark style="color:orange;">**func=proxy**</mark>](http://doc.cloudimg.io/https://samples.scaleflex.com/bootstrap.css?func=proxy&)

Cloudimage can automatically use the **proxy** function for all files that don't have an image file extension. This however will require all your images to have proper file extensions. If you prefer this behavior, you can switch it on in your Admin Console (*Image Settings / Compression / Enable static Content acceleration*):

<figure><img src="/files/NgT4914hyB9wrhyHxzmN" alt=""><figcaption></figcaption></figure>

{% hint style="info" %}
Please note that PDF documents are always converted to images (for more info, please check the [PDF to image](/transformations/static-content/pdf-to-image.md) section). If you want to deliver PDF images as such, you need to use **func=proxy**: [/samples.scalflex.com/satie2.pdf?<mark style="color:orange;">**func=proxy**</mark>](https://doc.cloudimg.io/https://samples.scaleflex.com/satie2.pdf?func=proxy&)
{% endhint %}