Convert PNG to PDF
Convert PNG images to PDF quickly with the same PurePDF workspace flow you already use.
Last updated
Drop PNG files here, then continue to the universal conversion workspace.
Runs in your browser · file never uploaded
This tool runs entirely in your browser using WebAssembly. Your file is never uploaded — it stays on your device from start to finish.
Full detail in our privacy policy.
At a glance
0 KB
Uploaded to any server
90+
Format pairs supported
Free
No signup, no watermarks
Start in 3 easy steps
A quick visual tour of the private PurePDF workflow.
Upload PNG
Add one or more PNG files from your device.
PDF preselected
We open the universal workspace with PDF selected automatically.
Convert & download
Run conversion and get files from the download hub.
Built for everyday PDF work
Fast, clear, and built around local browser processing.
Batch conversion
Convert one PNG file or dozens in a single run — no daily task limits.
Quality controls
Adjust output quality and settings before converting, so files come out exactly how you need them.
Auto-deleted files
Files are converted over encrypted HTTPS and deleted from our servers within minutes.
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PNG vs PDF: what changes when you convert
PNG (Portable Network Graphics) was introduced in 1996 by the PNG Development Group as a GIF replacement and is best known for logos, screenshots, ui graphics, images that need transparency. PDF (Portable Document Format), created by Adobe, is the better choice when you need documents, printing, sharing multi-page content.
Why convert? PDF files are typically much smaller than PNG — expect a noticeable reduction in file size. note that PNG transparency is not supported in PDF — transparent areas are filled with a white background.
Your PNG images are placed onto PDF pages in the order you upload them — ideal for turning photos, scans, or screenshots into a single shareable document.
| Attribute | PNG | |
|---|---|---|
| Full name | Portable Network Graphics | Portable Document Format |
| Introduced | 1996 | 1993 |
| File extension | .png | |
| Compression | Lossless | Document container |
| Transparency | Yes | No |
| Animation | No | No |
| Typical file size | Large | Medium |
| Compatibility | Every modern browser and OS | Opens in every browser and on every OS |
| Best for | Logos, screenshots, UI graphics, images that need transparency | Documents, printing, sharing multi-page content |
When to convert PNG to PDF
- Combine multiple images into one printable, shareable document
- Standardize mixed image libraries on PDF for consistent tooling
- Meet upload requirements for sites that only accept PDF
Frequently
Asked
Questions
Quick answers about this PurePDF workflow.
How do I convert PNG to PDF?
Upload your PNG files on this page. PurePDF opens the conversion workspace with PDF preselected — click Convert and collect the finished file from the download hub.
What happens to transparency when converting to PDF?
PDF does not support transparency. Transparent areas in your PNG file are filled with a solid white background. If you need to keep transparency, convert to PNG or WebP instead.
How much smaller will my file be as PDF?
It depends on the image content, but PDF typically produces significantly smaller files than PNG. Photographic images see the biggest savings.
Is the PNG to PDF converter free?
Yes — free with no signup, no watermarks, and no daily task limit.
Are my files private?
Files are transferred over encrypted HTTPS, processed, and automatically deleted from our servers within minutes. Nothing is stored, shared, or used for anything else.
Can I batch convert multiple PNG files?
Yes. Upload as many PNG files as you need and convert them to PDF in one run.