Convert a PDF to PNG at 300 DPI

Render PDF pages into lossless PNG images at 72 to 600 DPI, entirely inside your browser.

Drop your files here

.pdf · up to 300 MB

Choose files

How to Convert to PNG

1
Add your PDF
Drop a PDF of up to 300 MB into the box, or press “Choose files”. The page takes one document at a time: drop several and only the first one opens. Your own browser reads it, so nothing is uploaded and nothing sits in a queue waiting for a server.
2
Set DPI and pages
Choose a resolution from 72 to 600 DPI and tap any page you want to leave out. Tick “Compress further, without quality loss” for smaller files.
3
Download the PNG files
A single page comes back as one .png. Several pages arrive as a ZIP archive with each image numbered in page order.

300 DPI, without losing a pixel

The page opens with “For print” selected under “Image size”, which is 300 DPI; PDF to PNG itself starts at “Best quality”, 600. Pixel sizes match PDF to JPG at 300 DPI: an A4 page gave 2480 × 3507, a Letter page 2550 × 3300. A PNG keeps every pixel exactly as it was drawn. We saved one page of text both ways. The 300 DPI JPG, at its default quality of 85, differed from the PNG in 7.5 percent of its pixels. They were faint specks around the letters. The page takes one PDF at a time, up to 300 MB, and does not upload it.

What a page weighs as PNG and as JPG

We tested on October 22, 2026, with a two-page A4 report saved from LibreOffice. Page 1 holds a photo and text, page 2 only text. At 300 DPI the text page came out at 585 kB as PNG and 733 kB as JPG. The photo page was 7.2 MB as PNG and 1.5 MB as JPG, almost five times lighter. A 20-page Letter PDF of plain text gave 13 MB of PNGs and 17 MB of JPGs. In Chrome on a Mac, the report was ready within a second, the 20 pages in 1.1 to 1.3 seconds. At “Best quality”, 600 DPI, the report's pages weighed 11 MB and 1.5 MB. Its photo sits in the PDF at 300 pixels per inch, so 600 DPI only enlarged it.

“Compress further” on 300 DPI pages

“Compress further, without quality loss” rewrites each PNG with oxipng and keeps every pixel. We compared all 23 test pages before and after: not one pixel changed. At 300 DPI the text page shrank from 585 to 128 kB, the photo page from 7.2 to 4.8 MB. The 20-page ZIP fell from 13 MB to 3.1 MB, five and a half times lighter than the JPGs. It costs time: about 6 seconds for a page with a photo and 33 for the 20 text pages.

No print size inside the file

The 300 lives in the pixel count only. Our PNGs carried no pHYs chunk, the part of a PNG that stores the physical size of its pixels. macOS reported them as 72 DPI, and at 72 per inch our A4 page's 2480 pixels span 87 cm. To print, choose A4 or Letter in the print dialog and fit the image to the page. To make a PDF again, the row of next tools offers PNG to PDF. On its default, “Fit image”, our page became a sheet of 87 × 124 cm. With “A4”, the same pixels landed on an A4 sheet at 300 per inch.

The document never leaves your computer

Pages are rendered inside your browser tab by its own engine, in a background thread. The PDF is not uploaded, not queued and not stored anywhere for us to delete afterwards, so confidential drawings, contracts and scans stay on your machine. To continue in another tool, PulsarKit may store a local copy of your input or result in this browser. It can remain after you close the tab or restart the browser. Clear PulsarKit’s site data to delete it.

Frequently asked questions

Should I convert a PDF page to PNG or JPG?

Choose PNG when the page holds text, tables, diagrams or line art, because nothing is blurred and edges stay crisp. Choose JPG for pages with photos and for anything you need to keep small. In our test at 150 DPI, a page with a photo was 4.5 to 5 times lighter as JPG. A page of plain text was lighter as PNG.

Why is my transparent PNG still white?

Because the PDF itself lays a white rectangle under its content, and “Transparent background” leaves transparent only the places where the PDF draws nothing. For such a page, put the PNG through Transparent Background with “White backdrop” chosen. It clears the white paper around text and signatures, but also white parts of a logo and light areas of a photo.

Which DPI do I need for printing?

Use 300 DPI for print, which is the usual standard for documents and photographs. For screens, 150 DPI is enough, and 72 or 96 DPI is fine for previews. Above 300 DPI files grow fast without looking any better on a monitor.

How is this different from extracting images from a PDF?

This draws the whole page, text and vector graphics included, into one flat picture. Extracting images returns only the photos somebody embedded in the file, at the size they were stored, and leaves out everything drawn around them.

Is a PNG heavier than a JPG of the same page?

On pages with photos, yes: PNG compression is lossless and must keep every pixel intact, while JPEG throws away detail the eye rarely notices. On pages of plain text it can be the other way round. In our test at 150 DPI, all 20 pages of a text document came out lighter as PNG than as JPG. That is why PNG is the right choice for sharp text and the wrong one for a large photographic scan you plan to email.

What does the optimisation option do?

“Compress further, without quality loss” re-compresses each finished PNG with oxipng, which searches for a better encoding of the same pixels. The image is identical pixel for pixel after decoding. On October 21, 2026, at 150 DPI, it cut pages of text by about three quarters and pages with a photo by about 30 percent. It added half a second to two seconds per page in Chrome on a Mac.