Mac's Preview can export a PDF page to an image, but it's fiddly for multi-page files and batches. pdf-converter-mac.net does it in two clicks, right in Safari or Chrome — no app to install, no Automator workflow. Each page of your PDF becomes a crisp JPG at 150 DPI, and multi-page files come back zipped.
Free, watermark-free, and nothing to download — it works the same on any Mac, old or new, Intel or Apple silicon.
Why not just use Preview?
Preview is great for a single page, but exporting every page of a long PDF means opening the thumbnail sidebar, selecting pages, and exporting one by one — or building an Automator action. This tool skips all that: upload once and get every page back as a JPG, zipped. No software, no fuss, and it works identically across macOS versions.
JPG, PNG or PDF the other way
Use JPG for scans and photos; choose PNG for diagrams and crisp text. To build a PDF from images instead, use JPG to PDF, and to shrink a heavy file, Compress PDF.