Doonyang ConverterConvert PDF to PNG — Lossless, Pixel-Sharp Pages
Render PDF pages as PNG images with every character and hairline preserved exactly — no compression artifacts, ever.
The PDF-to-PNG converter rasterizes each page using lossless PNG encoding: what the renderer draws is exactly what lands in the file, bit for bit. Where lossy formats smear the sharp black-to-white transitions of text and ruled lines into faint halos, PNG keeps every edge mathematically intact. It is the format professionals reach for when a page will be inspected closely, embedded in other documents, or processed further — anywhere a compression artifact would be noticed or would compound.
How to use
- Open the converter, go to the PDF Merge tab, and choose the PDF to Image mode.
- Add your PDF files, then switch the output format from JPG to PNG.
- Choose the resolution: High or Maximum is worth it for PNG, since fine detail is what the format exists to preserve. No quality slider applies — PNG is always lossless.
- Press the convert button. One page downloads as a single PNG; multi-page documents arrive as a ZIP.
When to use this
- Slides and documentation: paste a contract clause, chart, or spec table into PowerPoint, Notion, or a wiki where readers will zoom in on the text.
- Diagrams and line art: schematics, floor plans, sheet music, and CAD exports are all hard edges — exactly what lossy compression damages and PNG protects.
- Screenshots of record: when an image of a page may serve as evidence or an archival copy, lossless output means nothing was altered by compression.
- Further editing: if the image will be cropped, annotated, or re-saved in an editor, starting from PNG avoids stacking one generation of compression loss on another.
- Print-quality extraction: render at Maximum resolution to get a page image that still holds up on paper.
Supported formats
Input: PDF files (.pdf) — text-based, vector, or scanned, with any number of pages. Output: one truecolor PNG per page at 144, 216, or 288 DPI. PNG has no quality setting because nothing is discarded; resolution alone determines the file's detail and size.
Privacy
Every page is drawn and encoded on your own device — the browser renders the PDF to a canvas and writes the PNG locally, so your documents are never uploaded, stored, or transmitted to a server. See the full privacy policy.
FAQ
Why are my PNG files bigger than JPGs of the same page?
Because nothing is thrown away. PNG stores the page exactly as rendered, which costs more bytes — typically several times the size of a JPG. That trade is the point: you pay in file size and get back perfect edges. If small files matter more, use the PDF to JPG converter.
Does the PNG output keep transparency?
Pages are rendered the way a PDF viewer shows them, on a white page background, so the output is a fully opaque image. PDF pages themselves don't have transparent backgrounds — the white "paper" is part of the page.
Which resolution should I pick for PNG?
High (216 DPI) suits most on-screen uses, including presentations viewed on large displays. Choose Maximum (288 DPI) for printing or when readers will zoom deep into small text; choose Standard (144 DPI) only when file size is tight.
Is PNG better than JPG for scanned documents?
It depends on the scan. Crisp black-and-white text scans keep their sharpness better as PNG. Scans that are essentially photographs — color brochures, photo albums — gain little from lossless encoding and end up far larger, so JPG usually serves those better.