How this works
Your PDF is read directly in your browser using Mozilla's PDF.js library and each page is rendered onto an in-memory canvas at roughly 2x resolution for a sharp result, then exported as a JPG. Nothing is uploaded to a server — if your PDF has 10 pages, you'll get 10 downloadable JPGs, one per page. Use the quality slider to balance image fidelity against file size, the same way the Compress Image tool works.