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PDF to JPG at 300 DPI

The resolution printers and publishers ask for, fixed. Choose a PDF and every page comes back as a 300 DPI JPG — there is nothing to set.

    How to export a PDF as 300 DPI JPGs

    1. Choose the PDF. Rendering starts immediately — there is nothing to press.
    2. Each page is rendered at 300 dots per inch and encoded as a JPG.
    3. Save the pages one by one, or take the ZIP with all of them in it.

    Why 300 DPI is a number worth its own page

    300 DPI is the figure print shops, publishers and design teams give you, and it is not arbitrary: it is roughly where the human eye stops resolving individual dots on a page held at reading distance. A file submitted at 150 will come back rejected, and one at 600 is four times the data for no visible gain on paper.

    A PDF has no resolution of its own — its pages are instructions, not pixels — so “300 DPI” only becomes meaningful at the moment it is rendered. An A4 page at 300 DPI is 2480 by 3508 pixels, which is what this page produces. The arithmetic is the whole job, and it is the step people get wrong when they screenshot a page instead.

    The general PDF to JPG tool can do this too, with a menu. This page exists because the people searching for 300 DPI already know the number, and a menu is one more thing to get wrong when a print deadline is the reason you are here. Same renderer, one less decision.

    Questions about 300 DPI

    What pixel size will I get?

    It depends on the page size. A4 at 300 DPI is 2480 × 3508 pixels; US Letter is 2550 × 3300. A page of an unusual size scales in proportion — the density is what is fixed, not the pixel count.

    Why JPG and not PNG?

    Because 300 DPI is a print request, and print workflows take JPG. If you need PNG — for transparency, or for line art where JPG artefacts show — use the general PDF to JPG tool, which offers both.

    My pages come out blurry.

    Then the images inside the PDF were below 300 DPI to begin with. Rendering cannot invent detail that was never in the file; all it can do is not lose any. You would need the original photographs or scans at a higher resolution.

    It is slow on a long document.

    300 DPI is a lot of pixels — about 8.7 million per A4 page — and all of it is computed on your device. A long document will take a while and use real memory. The progress count tells you where it is.

    Is my PDF uploaded?

    No. Every page is rendered by your browser on your device. Nothing is sent anywhere, and no file is held on a server waiting for you to download it.

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