> For the complete documentation index, see [llms.txt](https://mostafaznv.gitbook.io/larupload/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mostafaznv.gitbook.io/larupload/cover.md).

# Cover

Larupload allows you to upload cover files for your attachments. A cover is a visual representation of an attachment, which can be useful for displaying a thumbnail or preview image, and can be used to represent the attachment in various contexts, such as on a web page or in a mobile app.

With Larupload, you can assign a cover to an attachment by using the `attach()` method and passing the cover file as the second argument. If you don't specify a cover file, Larupload will automatically generate one based on the original file (image/video).

Additionally, you can also update the cover for an attachment at any time by using the `cover()->update()` method and passing the new cover file as the argument. Similarly, you can delete the cover for an attachment using the `cover()->detach()` method.


---

# 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://mostafaznv.gitbook.io/larupload/cover.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.
