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About PDF to PNG Converter

PDF to PNG Converter is a free online tool that turns PDF documents into high-quality PNG images. It was built around a single principle: your files should never leave your computer. Every conversion happens locally, inside your web browser — there are no uploads, no servers storing your documents, and no accounts to create.

Our Mission

Most “free” online converters quietly upload your files to a remote server, process them there, and ask you to trust that the copies are deleted afterwards. For invoices, contracts, ID scans, and other sensitive documents, that is a real privacy risk. We wanted to prove that a fast, high-quality converter can run entirely on the user’s own device — so that privacy is guaranteed by design, not by a promise.

How the Technology Works

The converter is powered by PDF.js, the open-source PDF rendering engine maintained by Mozilla. When you select a PDF, your browser reads the file directly from disk into memory, renders each page onto an HTML canvas at your chosen resolution, and exports each canvas as a PNG image. Because all of this runs in JavaScript on your machine, the document data is never transmitted over the network.

  • Adjustable quality: choose 72 DPI for web use, 150 DPI for everyday documents, or 300 DPI for print-ready output.
  • Transparent backgrounds: export pages with a real alpha channel for logos and overlays.
  • Batch & multi-page support: convert every page of a document and download them all at once as a ZIP archive.
  • Works offline: after the first visit, the tool keeps working even without an internet connection.

Who It’s For

Students converting lecture notes, designers extracting graphics, developers integrating conversion into their workflow, and anyone who simply needs a clean PNG from a PDF without installing software or handing their files to a third party.

Free & Supported by Ads

This tool is free to use. To cover hosting and development costs, the site displays advertisements. Ads never affect how your files are processed — conversion remains 100% local to your browser. To learn what data the site does and does not collect, please read our Privacy Policy.

Get in Touch

Questions, feedback, or a bug to report? We’d love to hear from you — visit our Contact page or email contact@pdftopng.info.