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NJHTools

PDF to JPG & PNG

Convert PDF to JPG or PNG free in your browser: turn every page, or just the ones you pick, into an image at 72, 150 or 300 DPI. No upload, no signup, no watermark.

Your PDF never leaves your device. It is processed locally in your browser, not uploaded to any server.

How to verify: open DevTools → Network, then use the tool. No request carries your file.

Drag a PDF here, or click to choose a file

Processed on your device. Your files are never uploaded.

How to convert PDF to JPG

  1. Drop a PDF onto the page, or click to choose one.
  2. Pick JPG or PNG, a resolution (72, 150 or 300 DPI) and, for JPG, the quality.
  3. Optionally select pages by clicking thumbnails or typing a range like 1-3, 5. Leave it empty for all pages.
  4. Click Convert, then download single images or use Download all.

Which DPI and format should I choose?

  • 72 DPI gives roughly screen size (an A4 page is about 595 × 842 px), fine for previews and chat apps.
  • 150 DPI is sharp on most screens and keeps files small; a good default for slides and documents.
  • 300 DPI is print quality (about 2480 × 3508 px for A4). Use it for printing or zooming into small text, at the cost of bigger files.
  • JPG suits photos and scans. PNG is lossless and keeps text and line art crisp, but files are larger. Choose PNG when you convert PDF to PNG for slides, diagrams or screenshots of text.
  • Korean, Chinese and Japanese PDFs render with the right characters. The PDF.js font and character-map (CMap) files are served from this site, so text in non-embedded CJK fonts doesn't turn into blank boxes, and no third-party font request is made.
  • Need the words from a scanned PDF? Convert the pages to PNG at 300 DPI, then drop the images into Image to Text (OCR) to copy the text.

Private PDF to image conversion

Pages are rendered by PDF.js, Mozilla's PDF engine, right in your browser, and the images are created on your device. Nothing is uploaded; open DevTools → Network while converting and you'll see no request carrying your file. Large pages are scaled down automatically if they would exceed your browser's canvas limit (about 16 megapixels). Password-protected PDFs can't be opened without the password, so unlock them first. To go the other way, combine images into a document with Image to PDF, or browse all PDF tools.

Frequently Asked Questions

How do I convert a PDF to JPG?↓

Open the PDF, choose JPG, a resolution and a quality, then click Convert. Each page becomes an image named like document-page-1.jpg that you can download one by one or with Download all.

Can I convert PDF to PNG instead of JPG?↓

Yes. Switch the format to PNG before converting. PNG is lossless, so text and line drawings stay perfectly crisp, but the files are larger than JPG.

What DPI should I use when converting PDF to images?↓

Use 72 DPI for small previews, 150 DPI for sharp on-screen images, and 300 DPI for printing or reading small text. At 300 DPI an A4 page is about 2480 × 3508 pixels.

Can I convert only some pages of a PDF to JPG?↓

Yes. Click the page thumbnails you want, Shift+click to select a run of pages, or type a range like 2-5, 9. Only those pages are converted.

Is my PDF uploaded to a server?↓

No. Pages are rendered by PDF.js inside your browser and the images are created on your device. To verify, open DevTools, go to the Network tab and convert a file: no request carries your PDF.

Why did Download all save only one image?↓

Browsers may block a site from saving many files in a row until you allow it. Accept the multiple-downloads prompt (or the icon in the address bar) and click Download all again. For long documents, tick Save each image as soon as it's ready.

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