PDF to PNG Converter

1Drop the PDF inIt never leaves your machine.

2Choose pages and resolutionEverything updates as you change it.

3Export the imagesAssembled here and saved from your own browser.

Lossless, for line work

PNG stores every pixel exactly, so there are no compression artefacts around text or thin lines. It costs more bytes than JPEG and keeps every edge intact.

How to use this tool

Drop a PDF on the box at the top. Every page is rendered so you can see it, and you choose which ones to export.

Set the resolution before exporting. That single number decides both how sharp the images are and how large the files become.

Each selected page downloads as its own PNG, named after the source document and its page number.

Lossless is the whole point

JPEG compresses by throwing detail away. It decides what your eye is unlikely to miss and discards it, which is extraordinarily effective on photographs, where the content is soft gradients and texture.

A page of a document is the opposite kind of content. It is sharp black shapes on flat white: text, rules, hatching, dimension lines. Those hard edges are exactly what JPEG handles worst, and the result is a faint grey mush around every letter, most visible on thin strokes and small type.

PNG stores every pixel exactly as rendered. There is no artefact because nothing was approximated. For a drawing sheet, a specification, a table of readings or anything with fine line work, that is the correct choice and the file size is the price of it.

The reverse is also true and worth saying plainly: if the page is a photograph, PNG will produce a file several times larger than JPEG for no visible gain at all.

A worked check you can repeat

An A4 page is 8.27 by 11.69 inches. At 150 dpi that is 1240 by 1754 pixels, which is 2.18 million pixels. At 300 dpi it becomes 2480 by 3508, which is 8.7 million, four times as many for twice the resolution.

That relationship is why the resolution setting matters more than any other. Doubling it quadruples the work and the file size, so 600 dpi is sixteen times the pixels of 150 and should be reserved for pages where someone genuinely needs that detail.

The rendering and the sizing were checked against an independent implementation before publishing, including the clamp that stops an oversized page exceeding what a browser canvas can hold. That clamp had a real bug found by fuzzing: rounding both dimensions up after scaling could push the result back over the ceiling and produce a blank image. It is fixed here and in every tool that shares the same sizing code.

Mistakes that catch people out

Using PNG for photographic pages. Several times the size for no visible benefit. JPEG is the right tool there.

Exporting a long document at 600 dpi. Sixteen times the pixels of 150 dpi, per page. The tab will labour and the files will be enormous.

Expecting the text to stay selectable. An image is pixels. If you need the words, extract the text instead.

Assuming higher resolution rescues a scan. Rendering at 600 dpi a page that was scanned at 150 just makes a larger blurry image.

Forgetting the page selection. All pages are selected by default. Deselect the ones you do not want before exporting.

Common questions

Is my PDF uploaded anywhere?

No. The file is opened and rendered by your own browser, and every image is produced here on the page. Nothing crosses the network, so there is nothing on a server to store or delete.

Why choose PNG over JPEG?

Because PNG is lossless. Nothing is discarded, so there are no compression artefacts around text or lines. On a drawing, a table or a page of type that difference is visible immediately.

Why are the files so much bigger?

Because nothing is thrown away. JPEG achieves its size by discarding detail your eye is unlikely to miss, which works beautifully on photographs and badly on sharp edges. PNG keeps everything, and pays for it in bytes.

What resolution should I use?

150 dpi is right for reading on screen. Use 300 for printing, and 600 only if someone will examine fine detail. Pixels grow with the square of the resolution, so 600 dpi is four times the size of 300.

Does it work on a scanned PDF?

Yes. Rendering a page does not care whether the content is text or a picture, so a scan converts exactly the same way.

Can I convert only some pages?

Yes. Select the pages you want before exporting, and only those are produced.

Related PDF tools and reference

Reference: ISO 32000, the standard that defines how a PDF page is described.