> For the complete documentation index, see [llms.txt](https://help.steeple.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.steeple.com/en/news/fichiers-preconises.md).

# Recommended file types: formats, weight, and sizes

### Upload limits

#### Images

* **Maximum size** : 10 MB
* **Accepted formats** : GIF, HEIC, HEIF, JPEG, PNG, WebP

#### Videos

* **Maximum size** : no size limit
* **Accepted formats** : AVI, MP4, MPEG, QuickTime, WebM, FLV, M4V, Matroska, WMV

#### Documents and other files

* **Maximum size** : 75 MB
* **Accepted formats** : PDF and any other non-image/video format

### Rendering examples for a portrait image

#### In the web/mobile app

#### On a TV screen in featured format

#### On a TV screen in standard format

### Combination rules

When adding media to a post:

* **Multiple images** can be combined into an album
* **A single video** can be added per message/post
* Videos cannot **be combined** with other file types
* PDFs cannot **be combined** with videos

### Special cases

#### Messaging

* Up to **10 files** per message, with **at most one video** (the rest as images)
* Same size limits as above

#### Documents (App Docs)

* Maximum size: **8 GB** for files uploaded in the Docs app
* Supported formats: PDF, images, videos, Word, Excel, PowerPoint and others

#### AI Assistant (Copilot)

* Accepted formats for document context: PDF, Word, Excel, PowerPoint, OpenDocument, CSV, TXT, RTF, HTML, Markdown, EPUB
* Size limit based on extracted text content (100,000 tokens max)

### What the assistant can do

The assistant does not handle file uploads. It can provide information on accepted formats and sizes.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://help.steeple.com/en/news/fichiers-preconises.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.