1. The quickest way — convert PNG to PDF in your browser
- Open the PNG to PDF tool.
- Drop in one PNG — or a whole batch.
- Choose your transparency option and page size.
- Download your PDF — no watermark, no sign-up.
The conversion runs on your device — your images are never uploaded.
Convert your PNG nowFree, in your browser — keep transparency, combine multiple files, no upload.
Open PNG to PDF →2. Transparency: keep it or flatten it?
Transparency is the whole reason PNG exists — and the thing most converters get wrong. PDF actually supports transparent images, so there are three sensible choices:
- Keep transparency — the image stays see-through in the PDF. Best for logos, stamps and signatures you'll place over other content.
- Flatten onto white — the safe default for documents, screenshots and anything headed for print. What you see is exactly what everyone gets.
- Flatten onto black — for light-on-transparent designs (a white logo, for instance) that would vanish on a white page.
The trap: many free converters flatten silently onto white — and a few onto black — without asking. If your design came out invisible or on the wrong background, that's why. Pick a tool that lets you decide.
3. Combine multiple PNGs into one PDF
Photographed a multi-page document, or collected a series of screenshots? Instead of sending ten attachments, drop them all in at once, arrange the order, and download a single PDF with one image per page. It's tidier to email, easier to read, and much harder to lose a page. (Working with photos in JPG format instead? See our JPG to PDF guide.)
4. Keeping screenshots pixel-sharp
Screenshots are mostly text — and text is exactly what JPG compression destroys. A converter that internally re-encodes your PNG as JPG will give you slightly smudged, ringed lettering in the PDF. A proper converter embeds the PNG's pixels losslessly, so the PDF looks identical to the original, zoom and all. If the resulting file is bigger than you'd like, compress it afterwards with the Compress PDF tool — that way you control the quality trade-off, not the converter.
5. PNG vs JPG for PDFs — which should you start from?
If you have both versions of an image, start from the right one: PNG for screenshots, scans of text, diagrams and anything with sharp edges or transparency; JPG for photographs, where its compression is invisible and the smaller size helps. And if you only have the wrong format, our PNG ↔ JPG conversion guide covers switching between them cleanly.
Need JPG to PDF, or images from a PDF?PDFNest has 32 free tools that all run in your browser.
Explore PDFNest →Frequently asked questions
How do I convert a PNG to PDF for free?
Open the PNG to PDF tool, drop in your PNG files, choose a transparency option, and download. It runs in your browser — nothing is uploaded, no watermark.
What happens to PNG transparency in a PDF?
PDF supports transparency, so you can keep it — or flatten onto a white or black background. Most converters flatten silently; PDFNest lets you choose.
Can I combine multiple PNGs into one PDF?
Yes — add them all at once, arrange the order, and download a single PDF with one image per page.
Does converting PNG to PDF lose quality?
No — a proper converter embeds the PNG losslessly, so screenshots and text stay pixel-sharp.