Convert PDF to JPG or PNG
Save PDF pages as pictures, for example for a slide or a post. Your browser does the work on your device; the PDF is not uploaded to our servers.
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One PDF file, up to 100 MB. You can also drop the file here.
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What this tool does
The tool draws each page you list the way a PDF reader shows it on screen, at the resolution you choose, and saves the drawing as a JPG or PNG file. Every page becomes one picture; several pictures are offered together as one ZIP archive.
Drawing is done by pdf.js, the open-source PDF engine of Firefox, which this site loads only after you have chosen a PDF. The pictures contain pixels only: text in them can no longer be selected or searched.
How to use it
- Choose a PDF, or drop it on the marked area. The list shows its number of pages, and the Pages field is filled with all of them.
- Choose the image format: JPG or PNG.
- Choose the resolution: 72, 150 or 300 DPI.
- Change the Pages field if you only need some pages, for example 1-3, 5.
- Start, then download the picture, or all pictures as one ZIP archive.
The pictures are named after the PDF and the page number, for example report-page-07.jpg for page 7 of a report with 12 pages, so that they sort in page order.
How the pixel size is calculated
A PDF page has no pixels. Its size is given in points of 1/72 inch (ISO 32000-1, section 8.3.2.3). The resolution says how many pixels each inch of the page gets, so the width in pixels is the width in points × DPI ÷ 72, rounded to a whole pixel; the same holds for the height. A page that the PDF shows turned is drawn turned.
| Page | Points | 72 DPI | 150 DPI | 300 DPI |
|---|---|---|---|---|
| A4 | 595.28 × 841.89 | 595 × 842 | 1240 × 1754 | 2480 × 3508 |
| US Letter | 612 × 792 | 612 × 792 | 1275 × 1650 | 2550 × 3300 |
The resolution is also written into each file (the density field of JPG, the pHYs chunk of PNG), so that word processors and print dialogs place the picture at the size of the original page.
JPG pictures are written with quality 92. Transparent areas of a page become white in both formats. Fonts that the PDF does not contain are replaced by similar fonts of your device, as in any PDF reader, so such text can look slightly different.
Worked example
A licence agreement of 310 pages in US Letter format, mostly dense text, was converted in Chrome on a laptop. For page 1, the tool produced these files:
| Resolution | Pixels | JPG | PNG |
|---|---|---|---|
| 72 DPI | 612 × 792 | 156,615 bytes | 175,116 bytes |
| 150 DPI | 1275 × 1650 | 504,276 bytes | 469,664 bytes |
| 300 DPI | 2550 × 3300 | 1,286,521 bytes | 1,082,824 bytes |
For this text, PNG was smaller than JPG from 150 DPI upwards, and it keeps the letters exactly sharp. JPG is the better choice for pages that are mostly photos or scans. Pages 1 to 20 at 150 DPI as JPG took less than a second and gave a ZIP archive of about 10 MB.
Common mistakes
- Choosing 72 DPI for printing. Text then looks coarse on paper; 300 DPI is the usual choice for print.
- Converting hundreds of pages at 300 DPI on a phone. All pictures are kept in memory until you download them. Convert fewer pages at a time.
- Expecting to edit the text afterwards. The pictures contain pixels only; to reuse text, copy it from the PDF in a reader.
- Enlarging a 72 DPI picture later. Detail that was not drawn cannot be added; convert again at a higher resolution instead.
Frequently asked questions
- Which resolution should I choose?
- 150 DPI suits screens, messages and slides. 300 DPI is the usual choice for printing and for small text. 72 DPI gives the smallest files; the picture then has one pixel per point of the page.
- JPG or PNG: which is better for a PDF page?
- PNG for pages of text, tables and drawings, because it stores every pixel exactly. JPG for pages that are mostly photos or scans, where it usually gives much smaller files.
- Can I convert a password-protected PDF?
- No. The content of a protected file is encrypted, and the tool reports this. Save a copy without protection in a program that knows the password first.
- Is my PDF uploaded to draw the pages?
- No. pdf.js runs in your browser, in a background worker loaded from this site, and draws the pages on your device. The only requests are for program files of this site; the PDF is not uploaded to our servers. When advertising is enabled and permitted, the page also loads third-party advertising scripts; the privacy policy explains this.
- Why does a picture look different from the page in my PDF reader?
- Most often the PDF uses a font it does not contain, and your device has a different substitute than the computer where the PDF was made. Rare features such as unusual colour spaces can also be drawn differently.
Last updated: September 29, 2026