# Using your files

DeepWriter can find data on its own—but you can also provide up to 20 files, each with a max size of 100 MB.

{% hint style="info" %}
**Pro tip:** Your prompt can include tips for DeepWriter to guide it on where to find the sources you prefer. For example you can suggest a particular web repository or author for it to focus its research on.
{% endhint %}

**Example Usage:** 

For highly specialized or proprietary research, giving DeepWriter your key documents—like internal reports or datasets—helps it create more accurate, detailed, and relevant content than a general model could.

{% hint style="info" %}
**Important:** DeepWriter can’t process image- only PDFs. Make sure your PDF contains selectable text so the tool can analyze it.
{% endhint %}

To upload your own files, please click on the file upload icon in the lower right of the prompt window:

<figure><img src="/files/oyDZ6sbndoEFWCAjNpM4" alt=""><figcaption></figcaption></figure>

{% hint style="info" %}
**Important**: DeepWriter will not log in to external sites, and you should never provide credentials or passwords. Third-party authentication is not supported (yet), but it's on the roadmap.
{% endhint %}


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# Agent Instructions: 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:

```
GET https://docs.deepwriter.com/tips-tricks-and-hacks/using-your-files.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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.