# Upload documents

## What it is

File upload into Knowledge: drag-and-drop or browse so PDFs, Word docs, markdown, and similar formats are processed into searchable chunks for your Twin.

## What it’s for

Longer material than Quick Add — bios, FAQs, talk notes, decks as PDF, policy pages. When you need the Twin to answer from a real document instead of a one-liner.

## How to use it

1. Open **Knowledge** ([https://base.hi.speak-to.ai/knowledge](https://base.hi.speak-to.ai/knowledge)).
2. Drag and drop files or use browse. Supported types include `.txt`, `.md`, `.html`, `.pdf`, `.docx`, `.rtf`, `.odt`, `.epub`.
3. Wait for processing (large uploads may take a few minutes).
4. Open Explore to check titles and chunks; fix or remove passages that confuse answers.
5. Ask the public Twin (`https://hi.speak-to.ai/your-name`) a question that should hit the new doc.

## Tips / pitfalls

- Clear headings and short sections retrieve better than walls of text.
- Mark sensitive files **private** before you share the Twin widely — see [Sharing and Privacy](/guide/ai-twin-owners/sharing-and-privacy).
- Prefer one focused FAQ over many near-duplicate exports.
- If answers cite the wrong chunk, edit or delete in Explore rather than re-uploading blindly.

## Related

- [Knowledge Management](/guide/ai-twin-owners/knowledge-management)
- [Quick Add](/guide/ai-twin-owners/quick-add)
- [Preparing Content](/guide/ai-twin-owners/preparing-content)
- [Website import](/guide/ai-twin-owners/website-import)

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