Convert PDF to JPG images
Turn every page of a PDF into a JPG image at 72, 150 or 300 DPI, preview the results, then download them individually or as a ZIP.
- Runs in your browser
- Files are never uploaded
- Free, no account
Every page is rendered by pdf.js on this device. Nothing is uploaded, so the tool keeps working with your network switched off.
How to convert a PDF to JPG
- Drop your PDF onto the box above, or click it to pick a file. The document is opened by pdf.js inside this tab — it is never uploaded.
- Choose a resolution. 150 DPI is the sensible default; pick 300 DPI if the images will be printed or run through OCR.
- Set the JPG quality if you need smaller files. Anything from 85 to 92 is visually indistinguishable from the maximum on a page render.
- Press Convert to JPG. Each page appears in the gallery as it finishes, so you can start checking results before the document is done.
- Download the whole set as a ZIP, or grab individual pages with the download button on each thumbnail.
Which DPI should you pick?
A PDF stores pages in points, where 72 points equal one inch. Rendering at a given DPI simply multiplies that grid: 300 DPI means each inch of the page becomes 300 pixels. The trade-off is file size, which grows with the square of the resolution.
| DPI | A4 page (px) | US Letter (px) | Megapixels | Best for |
|---|---|---|---|---|
| 72 | 595 × 842 | 612 × 792 | 0.5 MP | Thumbnails, quick previews, email attachments |
| 150 | 1240 × 1754 | 1275 × 1650 | 2.2 MP | Reading on screen, slide decks, web pages |
| 300 | 2480 × 3508 | 2550 × 3300 | 8.7 MP | Printing, OCR input, archival copies |
Higher is not automatically better. Rendering cannot invent detail: if the page contains a 150 DPI scan, requesting 300 DPI just doubles the pixels without adding information. Vector pages — anything produced by Word, LaTeX, InDesign or a browser's print dialog — do get genuinely sharper, because the text and lines are re-drawn at the higher resolution.
When JPG is the right choice
JPG uses lossy compression tuned for photographs. It is excellent for pages that are mostly images and poor for pages that are mostly text at low quality settings, where you will see faint "ringing" halos around letters. For text-heavy pages that must stay pristine, use PDF to PNG instead — it is lossless, at the cost of a considerably larger file.
Typical reasons people rasterise a PDF page:
- Posting a page online where a PDF viewer would be clumsy — a menu, a flyer, a certificate.
- Dropping a page into a slide deck or document that cannot embed PDFs cleanly.
- Flattening a form so the fields, annotations and layers become a fixed picture.
- Feeding OCR software, which usually wants 300 DPI images rather than a PDF.
- Sending a preview of one page without handing over the whole document.
What stays on your device
Everything. The PDF is parsed by pdf.js in a web worker, each page is drawn onto an HTML canvas, and the canvas is encoded to JPG by the browser itself. No part of the file is sent anywhere, there is no queue to wait in, no account, and no watermark on the output. If you disconnect from the network after this page has loaded, the tool still works — which is the simplest possible proof that nothing is being uploaded.
Questions
What DPI should I choose?
72 DPI matches screen resolution and keeps files tiny. 150 DPI is the sweet spot for sharing and on-screen reading. 300 DPI matches print resolution and is what you want if the image will be printed or fed to OCR — expect roughly 17× the pixels of a 72 DPI render.
Are my pages uploaded anywhere?
No. The PDF is parsed and rendered by pdf.js inside this tab, and the JPGs are produced by your browser’s own canvas encoder. Nothing is transmitted, so the tool also works with your network disconnected.
Why does my scanned PDF look soft at 300 DPI?
Rendering cannot add detail that is not in the file. If a page contains a 150 DPI scan, asking for 300 DPI simply upscales those pixels. Text-based PDFs are vector and do get genuinely sharper at higher DPI.
Is there a page or file-size limit?
Only your device’s memory. Hundreds of pages work; very large pages at 300 DPI use a lot of RAM, so the tool automatically caps the canvas size instead of failing.
Can I convert just one page?
Yes. Convert the document, then use the download button on the individual thumbnail you want instead of the ZIP.