> ## Documentation Index
> Fetch the complete documentation index at: https://docs.runchat.com/llms.txt
> Use this file to discover all available pages before exploring further.

# File

> Import images, videos, PDFs, and text documents into a Runchat workflow. Supports drag-and-drop, multiple files, and uploads to Runchat's cloud storage.

<Frame>
  <img src="https://mintcdn.com/runchat/J8Y8DQ43swL1M50L/images/nodes/file-input.webp?fit=max&auto=format&n=J8Y8DQ43swL1M50L&q=85&s=3a7632cf6d9061db81fadd454a1a3178" alt="A File input node with the Import button" width="636" height="248" data-path="images/nodes/file-input.webp" />
</Frame>

The File node imports files from your computer into a workflow. Click the upload area to choose a file, or drag a file onto the node directly. Click the **+** button in the settings bar to add multiple files.

When you upload an image, video, or PDF, Runchat uploads the file to cloud storage and stores a URL on the node. Plain text files (`.txt`, `.csv`, `.json`, `.xml`, `.html`) are stored directly on the node as text content.

## Supported file types

* Images: `.jpg`, `.jpeg`, `.jfif`, `.png`, `.gif`
* Videos: `.mp4`, `.webm`, `.mov`, `.avi`, `.mkv`
* Documents: `.pdf`, `.txt`, `.csv`, `.json`, `.xml`, `.html`

A single File node can hold multiple files of the same type. To import different file types, use separate File nodes.

## Image Input

For image-only uploads, use the dedicated **Image Input** node instead. It restricts uploads to image formats and is the right choice when you're publishing the node as part of a [Tool](/concepts/publishing/custom-nodes) and want to constrain what users can upload.

## Preview

After uploading, the file is previewed inline on the node. Images and videos render as thumbnails, PDFs display the first page.

## Next steps

* [Data Types](/concepts/data/data-types): how file URLs flow through a workflow
* [Create node](/node-reference/nodes/create): use uploaded images as references for generation