PDF to JPG 600 DPI
PDF to JPG 600 DPI renders each PDF page as a 4960 x 7015 pixel JPG (A4) with pdf.js in your browser, free and with no upload or watermark.
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PDF file · processed on your device, never uploaded
At a glance
- Accepts
- One PDF file
- Outputs
- One 600 DPI JPG per page: 4960 x 7015 px for A4, 5100 x 6600 px for US Letter (PNG also available)
- Where it runs
- Entirely in your browser, on your device
- What leaves your device
- Nothing - the file never leaves your device
- Limits
- No page cap; iPhone and iPad browsers cap an image at 16.7 million pixels, so there an A4 page comes out at about 417 DPI
- Account
- Not required - there is no sign-up
- Price
- Free, with no watermark and no usage cap
- Made by
- Visrut
- Last updated
- 11 October 2026
This page opens with Max (600 DPI) already picked, so you can drop a PDF and click Convert. Each page becomes its own JPG of about 34 megapixels: 4960 x 7015 pixels for A4, 5100 x 6600 for US Letter. It is free with no page limit or watermark, and the rendering happens in this browser tab with pdf.js, so the PDF is never uploaded.
When 600 DPI is worth it
- Fine print and small type that someone will zoom into, or crop out of the page and enlarge: footnotes, map labels, part numbers on a drawing.
- Line art, plans and diagrams made on a computer. They are stored as shapes, so 600 DPI draws thin lines and small text sharper than 300 does.
- A master copy you'll reuse. You can always shrink a 600 DPI image later; you can't get detail back from a 150 DPI one.
When it isn't, and what to pick instead
- The PDF is a scan made at 300 DPI or less (check the scanner setting). Rendering higher only enlarges the same pixels and, in our test, tripled the file size. Use PDF to JPG 300 DPI.
- Printing a normal document or running OCR. 300 DPI is the usual print resolution, and the documentation of Tesseract, the open-source OCR engine, says it works best from 300 DPI up.
- Email, chat or a web page. A 600 DPI page is far larger than any screen. 150 DPI on PDF to JPG is plenty.
- You're on an iPhone or iPad. Its browsers can't draw an image this large (see below), so the result will be smaller than 600 DPI anyway.
Pixel size of one page at each DPI
| DPI | A4 (pixels) | US Letter (pixels) | Megapixels (A4) |
|---|---|---|---|
| 150 | 1240 x 1753 | 1275 x 1650 | 2.2 |
| 300 | 2480 x 3507 | 2550 x 3300 | 8.7 |
| 600 | 4960 x 7015 | 5100 x 6600 | 34.8 |
These are the exact sizes the tool writes. Other charts sometimes say 4961 x 7016 for A4 at 600 DPI; the tool rounds down, so it can be a pixel smaller.
File size and speed we measured
One A4 page at 600 DPI, JPG quality 90, in desktop Chrome:
- Text page (a typed report): 0.4 MB.
- Page of photos: 3.8 MB.
- 300 DPI scan of a letter: 6.9 MB, against 2.1 MB at 300 DPI from the same page.
- Speed: under half a second a page on a recent laptop. All 12 pages of a report took about 5 seconds (5 MB of JPGs), most of it the short pause the tool leaves between downloads.
Safari made files 1.5 to 2 times larger than Chrome at the same quality setting, because each browser has its own JPEG encoder. Lower the quality slider to 80 if the files are too big; at this resolution the difference is hard to see.
Memory, and iPhone and iPad
While a 600 DPI A4 page is being drawn, the browser holds about 140 MB for it (35 million pixels at 4 bytes each). The tool renders and saves one page at a time and frees it before the next, so a long PDF doesn't add up. On iPhone and iPad, Safari and the other browsers refuse any image over 16.7 million pixels, so the tool renders the page at the largest size allowed instead (about 3444 x 4871 pixels for A4, roughly 417 DPI) and shows a note saying so.
How to use it
- Drop a PDF on the box above, or click to choose it.
- Leave "Max 600 DPI" selected. Pick "Choose pages" to convert only some of them, like "1-3, 7".
- Click "Convert to JPG". Each page downloads as its own file, named after the PDF and the page number.
Frequently asked questions
How big is a 600 DPI JPG of one PDF page?
4960 x 7015 pixels for A4 and 5100 x 6600 for US Letter, about 34 megapixels. File size depends on the page: in our tests at the default quality of 90, a text page was 0.4 MB, a page of photos 3.8 MB, and a 300 DPI scan 6.9 MB.
Is 600 DPI better than 300 DPI?
Only if the PDF has the detail to fill it. Text and drawings made on a computer are stored as shapes, so they render sharper at 600 DPI. A page that is itself a 300 DPI scan has no more detail to give: 600 DPI just enlarges the same pixels, and our scan's JPG grew from 2.1 MB to 6.9 MB for no visible gain.
Does 600 DPI work on an iPhone or iPad?
Not at full size. Safari and other browsers on iPhone and iPad cap an image at 16.7 million pixels, and a 600 DPI A4 page is about 35 million. The tool then renders the page as large as the cap allows (about 3444 x 4871 pixels for A4, roughly 417 DPI) and tells you so. A computer browser renders the full 600 DPI.
Is the 600 DPI JPG free, and is there a page limit?
Free, with no page cap and no watermark. Every page is rendered in your browser one at a time and saved as its own JPG, so a long document is limited only by your patience and disk space.
Does the JPG file say 600 DPI in its properties?
No. The browser's JPEG encoder doesn't write a DPI value, so image viewers usually report 72 or 96. What matters is the pixel count: print 4960 x 7015 pixels on A4 paper and it is 600 dots per inch. Set the print size, not the DPI field, in your layout or print dialog.
Should I use PNG instead at 600 DPI?
For pages of plain text or line art, PNG is lossless and only a little larger (0.7 MB vs 0.4 MB on our text page). For scans and photos, PNG at 600 DPI gets very large (9 to 11 MB a page in our tests), so JPG is usually the better choice.