# Document Viewer

> A document viewer for cited answers: the passage a citation points to highlighted on its page, page navigation, the file name and page count, so readers can check a claim at the source.

- Author: [Aadi](https://21st.dev/@aadixc0de)
- Library: [chatcn](https://21st.dev/@aadixc0de/library/chatcn)
- License: mit
- Tags: PDF, Citation, Viewer, Rag, Document
- Live preview: https://21st.dev/@aadixc0de/components/document-viewer

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/aadixc0de/document-viewer?api_key=$API_KEY_21ST"
```

Requires a 21st API key (generate one at https://21st.dev/mcp) passed as `API_KEY_21ST`. Free accounts get a limited number of installs per day; unlimited on a paid plan — see https://21st.dev/pricing.

Full component directory: https://21st.dev/llms.txt · More like this: https://21st.dev/community/components/s/pdf.md