Convert PDF Pages to JPG or PNG Images

A PDF page has a size in points, where 72 points make an inch, so the image size depends on the DPI you choose. For an A4 page, 72 DPI gives about 595 x 842 pixels, 150 DPI about 1240 x 1754, and 300 DPI about 2480 x 3508. Use 72 to 96 for thumbnails and web previews, 150 for comfortable reading, and 300 when the image will be printed or when small text must stay legible.

The page range accepts numbers such as 1-3,5,8- and leaves all pages selected when empty. PNG keeps text and line art crisp and is lossless but larger, while JPEG is much smaller for scanned pages and photographs, with a quality slider. Pages are drawn on a white background.

The PDF is opened with pdf.js, the same rendering engine Firefox uses to display PDFs, in a web worker in your browser. Pages are rendered one at a time: each one is drawn on a canvas, written to a PNG or JPEG file and released before the next begins, so memory use stays low even for a long document. Each file shows its size, and you can download them separately or as a ZIP.

If the PDF is protected with a password, the tool asks for it and passes it to the PDF engine in your browser. The password is not stored or sent anywhere. A wrong password shows a clear message and lets you try again.

Up to 300 pages are converted per run and the finished images are kept in memory, so the run stops with a notice if they pass about 600 MB; use a page range or a lower DPI to continue. A page that would need more than 16,384 pixels on a side or 64 megapixels at your chosen DPI is reported on its own row instead of crashing the tab, and you can lower the resolution for it.

Rendering is faithful for most documents but not guaranteed to match every other viewer. Fonts that are not embedded in the PDF are replaced with similar system fonts, so spacing can differ slightly. Some interactive form fields, signatures and advanced transparency features may draw differently. The images contain the visible page only, not the text layer, so they cannot be searched.