PDF to JPG
In your browser, no upload
an image per page · 150 or 300 dpi
Specification
6 rows| Item | Value | Notes |
|---|---|---|
| Input | Read from the file itself, not its name | |
| Output | One JPG per page | Numbered after the original’s name; JPEG quality 92 |
| Resolution | 150 or 300 dpi | 150 for a screen, 300 for print |
| Drawn by | PDF.js | The renderer inside Firefox, running in this tab |
| Largest page | 16.7 million pixels | A larger page is drawn at the highest resolution that fits |
| Processed in | This browser | Not sent to a server |
What happens
4What happens, and why
Drop a PDF and every page comes back as a JPG, listed in order with a download next to each. The one choice is the resolution: 150 dpi is enough for a screen (an A4 page becomes 1240 × 1754 pixels), 300 dpi is for printing (2480 × 3508). The images are drawn again when you change it.
A PDF page is not a picture. It is a list of instructions — this text, in this font, at this spot; a line here; a photograph placed there at this size. Turning a page into an image means following those instructions once, at one resolution, and keeping the result. That is done here by PDF.js, the renderer inside Firefox, running in this tab. It is also why the badge says the page was saved again: the image is a new drawing of the page, and a JPEG of it is compressed at quality 92.
Pages are drawn on white, the way a reader shows them, with their own rotation, and with form fields and notes drawn as the file gives them. Text becomes part of the picture: it looks the same but can no longer be selected, searched or copied. A page larger than 16.7 million pixels at the chosen resolution — a poster, a large drawing — is drawn at the largest resolution that fits, so the image still opens on a phone, and the note under the badge says when that happened.
If the PDF is a scan, its pages are already pictures, and drawing them at another resolution resamples them; 300 dpi keeps most scans at or near the size they were scanned at. To take a scan’s pictures out as they were stored instead, without drawing them again, use Extract images from PDF. Nothing is uploaded: the file is read in this tab and the images are written here.
FAQ
5Which resolution should I choose
150 dpi for anything read on a screen: posting a page, pasting it into a message or a slide. 300 dpi for printing, or when the page has small print you will want to zoom into. The larger one takes about four times the space.
Why is the text blurry when I zoom in
Because it is pixels now. In the PDF the letters are outlines that stay sharp at any size; in the image they were drawn once, at the resolution you picked. 300 dpi keeps them sharp at print size. For text you need to select or edit, keep the PDF.
JPG or PNG
JPG makes smaller files and suits pages that are mostly photographs. PNG keeps every pixel of the drawing, so the edges of letters and lines stay crisp, at a larger size. The PNG version of this page is in the list below.
Can it open a password-protected PDF
No. This page has no way to ask for a password, so a locked file is refused with a message. Open it in a reader, save an unprotected copy, and use that. A file that only restricts printing or copying opens as usual.
Is the PDF uploaded
No. The browser reads the file from your disk and writes the new one on this page. There is no upload endpoint on this site, so there is nowhere for the file to go. Nothing about the document is logged either — this page does not know how many pages your file has.