Convert PDF to PNG Online — Free
Convert PDF to PNG online — render each PDF page as a lossless PNG image at your chosen resolution. Ideal for crisp text, diagrams, and design work.
How to convert PDF to PNG
- 1
Add your PDF file
Drop or select a .pdf file. Files up to 50MB process locally in your browser — nothing uploaded.
- 2
Run the conversion
Each PDF page renders to a Canvas via PDF.js at the DPI you choose, then exports as PNG with DEFLATE compression. PNG keeps text and graphic edges pixel-perfect — no JPG compression softening. Multi-page PDFs produce one PNG per page, bundled into a ZIP for download.
- 3
Download your PNG
One click saves the result as a .png file. Your original file stays on your device.
Why convert PDF to PNG?
PNG is the right choice when you need crisp, lossless images of PDF pages — for design files where text must stay sharp, presentations with text-heavy slides, embedding PDFs in documentation where JPG artifacts would be distracting, or generating reference images for a design system. PNG preserves fine line art, sharp text edges, and flat color regions exactly — none of which JPG does as well.
Common PDF to PNG use cases
- Converting a PDF design mockup page-by-page into PNGs for inclusion in a Figma or Sketch design system
- Extracting PDF infographic pages as PNGs for a blog post or social media where sharp text matters
- Producing PNGs of PDF contract pages for review annotation in a tool that only accepts images
- Generating high-resolution PNG exports of PDF architectural drawings, circuit schematics, or technical diagrams
What file size to expect
A 10-page text-heavy PDF rendered at 150 DPI produces 10 PNGs at roughly 400-800 KB each (total 4-8 MB ZIP). At 300 DPI, each PNG is 1.5-3 MB (total 15-30 MB). Text-heavy pages compress well in PNG (DEFLATE excels at sharp edges); photo-heavy pages produce larger PNGs than JPG equivalents.
Technical notes: PDF → PNG
PDF.js renders PDF pages to a Canvas at the specified resolution. Unlike JPG output, PNG preserves text antialiasing, line art, and transparency (if present — PDF supports transparency within page elements, which composites onto a white page background before PNG encoding). PNG's DEFLATE compression handles text edges and flat regions efficiently. Password-protected PDFs require the password. Forms render with filled values; annotations and comments render inline.
Compatibility and browser support
PNG is universally supported everywhere. PDF rendering via PDF.js works in any modern browser. Very large PDFs at high DPI may hit browser memory limits; split into smaller chunks first or use a lower DPI setting.
PDF vs PNG
| PNG | ||
|---|---|---|
| File size | Varies | Larger (lossless) |
| Quality | Preserves layout | Lossless |
| Transparency | Yes (within pages) | Yes |
| Browser / app support | Universal | Universal |
| Best for | Documents, forms, archival | Screenshots, logos, graphics with transparency |
Related conversions
Frequently Asked Questions
Multi-page?
Each page becomes one PNG, bundled into a ZIP named by the PDF. Pages numbered sequentially: page-1.png, page-2.png, etc.
Why PNG instead of JPG?
PNG preserves text and graphic edges sharply; JPG can soften fine detail at lower quality, especially around small text or thin lines. PNG is also lossless — no generation loss for reference imagery.
Resolution?
Configurable DPI: 72 (web thumbnail), 150 (standard), 300 (print-ready), or custom. Higher DPI produces larger files but sharper text.
Will the PNG be bigger than an equivalent JPG?
For text-heavy pages, PNGs are often smaller than JPGs (DEFLATE compresses sharp edges well). For photo-heavy pages, PNGs are 2-4× larger than JPGs. Choose based on page content.
Password-protected PDFs?
Supported — enter the password when prompted. It's used in-browser and not stored or transmitted anywhere.
What about transparent PDF elements?
PDF transparency composites onto a white page background before PNG encoding. The output PNG doesn't have page-level alpha (PDF pages don't expose one).