This converter opens your PDF with a self-hosted copy of PDF.js — the same renderer Firefox uses — and draws each page onto a canvas at the resolution you choose. The canvas is then encoded as a JPEG at your selected quality and offered as a download.
The result is a set of ordinary JPG images that look exactly like the pages you saw: text, photos and graphics are all “photographed” into pixels. That makes the output ideal anywhere an image is easier to use than a document — image-only upload forms, slide decks, messaging apps, or a quick preview you can paste into a chat.
Because rendering happens in your browser tab, there is no page-per-minute server limit and no file ever crosses the network. The trade-off is that your own device does the work, which is why resolution and quality controls are there: higher settings mean sharper images and larger files.