How to convert a PDF to images
Turning a PDF into images is handy when you need to post a page on social media, drop it into a slide deck, or send a preview to someone who cannot open PDFs easily. Each page becomes its own picture — and a couple of choices decide how good those pictures look.
JPG or PNG?
Choose PNG when the pages are mostly text, diagrams or screenshots: it is lossless, so the edges of letters stay crisp and there are no compression artefacts. Choose JPG when the pages are photo-heavy and you want smaller files, accepting a little softness. For a document you intend to read, PNG usually looks noticeably cleaner.
If a page has a transparent background you want to keep, PNG is the only one of the two that preserves it; JPG will fill transparency with a solid colour.
Keeping the images sharp
Resolution is what determines whether the text in your exported image looks clean or fuzzy. A higher render scale produces a sharper, larger image — worth it when the page has small text or you might print or zoom in. For a quick on-screen preview, a standard resolution keeps the files light.
When a PDF has many pages, the export typically bundles the images into a single zip so you get them all at once. Everything runs in your browser, so the document is never uploaded.