Free Online Engineering Tools

PDF to PNG Converter

Render every page of a PDF into a lossless PNG at up to 600 DPI, with an optional transparent background. Nothing is uploaded — pages are drawn inside your browser. Completely private, instant, and free.

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Drop your PDF here

or click to browse · PDF files · scanned PDFs work too · no size limit

Converts on your device — your PDF is never uploaded
pages
page size
output pixels
est. total
Image format PNG
JPG — best for photo-rich pages. Small files, slight compression around sharp text.
Resolution 150 DPI
Custom: DPI (36–600)
150 DPI — sharp on screen, sensible file sizes. The right choice for most jobs.
Background
Fill the page background with white
Switch this off for a transparent PNG — handy for dropping a diagram onto a coloured slide.
Pages to convert all pages
Leave empty for the whole document. Converting a range is much faster at high DPI.
✓ Saved to your device as page-1.jpg

Convert PDF to PNG — Lossless, Up to 600 DPI, No Upload

Render every page of a PDF into a lossless PNG image at up to 600 DPI, with the option of a transparent background. Pages are drawn inside your browser, so the document is never uploaded. Free, no watermark, no sign-up, no page limit.

Why PNG for a PDF page: PDF pages are mostly text and vector graphics — precisely the content JPG compression handles worst. PNG keeps every letter edge exactly as drawn, with no smudging when you zoom or print.

PNG vs JPG for Document Pages

 PNGJPG
Text and line edgesPerfectly crispFaint compression smudging
PhotographsPerfect, but bulkyExcellent and small
TransparencyYesNo
File sizeLargeSmall
Re-saving repeatedlyNo quality loss everDegrades each time

If your pages are documents — reports, contracts, invoices, schematics, sheet music, screenshots — PNG is the correct choice. If they are photo spreads, JPG will look identical at a fraction of the size.

Transparent PNG from a PDF Page

The white you see on a PDF page is usually not a white background — it is simply unmarked paper. Switch off the white fill and the PNG comes out with a real alpha channel, opaque only where there is ink.

That makes it straightforward to drop a flowchart, org chart, logo sheet or signed signature block onto a coloured slide, a letterhead or a dark-mode document without a white rectangle around it. Most converters flatten to white and give you no say.

Resolution and File Size

DPIA4 page in pixelsTypical PNG sizeGood for
72595 × 842~100–300 KBWeb, previews
1501240 × 1754~300 KB–1 MBEveryday use
3002480 × 3508~1–4 MBPrinting
6004961 × 7016~4–15 MBLarge format, archival

PNG sizes vary far more than JPG because they depend on how much detail is on the page: a sparse text page compresses beautifully, a full-page photograph does not. If the files come out bigger than you want, try WebP or run them through the Image Compressor.

One PNG per Page

PNG holds a single image, so a ten-page PDF produces ten PNG files. Each page appears as its own thumbnail with a download button, and Download all bundles them into one ZIP with zero-padded numbering so the order stays correct in any file manager.

Frequently Asked Questions

How do I convert a PDF to PNG?

Drop your PDF in - PNG is already selected. Choose a resolution, press Convert, and each page appears as a thumbnail you can download, or take them all as a ZIP. Everything renders in your browser with no upload.

Why choose PNG over JPG for a PDF?

Because PNG is lossless. JPG compression works by discarding detail the eye forgives in photographs, but around the hard edges of letters and lines it leaves faint smudging - visible when you zoom and noticeable in print. A PDF page is usually mostly text and vector graphics, which is exactly the content JPG handles worst and PNG handles perfectly.

Can the PNG have a transparent background?

Yes. Switch off the white background fill and the exported PNG is genuinely transparent everywhere the page has no ink. A PDF page carries no background of its own, so this works naturally - useful for placing a diagram or signature onto a coloured slide without a white box around it.

How large will the PNG files be?

Larger than JPG, often several times so, because nothing is thrown away. A text-heavy A4 page at 150 DPI is typically a few hundred kilobytes; at 600 DPI it can run to several megabytes. If size matters more than perfection, WebP gives close to PNG sharpness at a fraction of the size.

Is PNG better for printing?

For pages with text, tables and line art, yes - there is no compression artefacting at all. Render at 300 DPI for standard printing or 600 DPI for large format. For photographic pages the difference is invisible and JPG saves a great deal of space.

Does PNG support multiple pages in one file?

No. PNG is a single-image format, so each PDF page becomes its own file. That is why the tool offers a ZIP download containing every page as a numbered image, keeping the order intact.

Will the PNG be pixel-identical to the PDF page?

It is a faithful render at the resolution you choose: same layout, fonts, colours and graphics. PDF content is largely vector, so it has no native pixel size - you decide that with the DPI setting.

Does it work with scanned PDFs?

Yes. Pages are rendered visually, so scans convert exactly like digital documents and no OCR is involved.

Is it free and private?

Completely free with no sign-up or watermark, and completely private: the rendering happens in your browser and your PDF is never uploaded.

Related: Going the other way? PNG to PDF. PDF to JPG (all options) · PDF to JPG at 300 DPI · PDF to Image · PDF to Word