Convert PNG to BMP
Convert PNG images to BMP 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.
BMP preselected
We open the universal workspace with BMP 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 BMP: 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. BMP (Bitmap Image File), created by Microsoft, is the better choice when you need legacy windows applications.
Why convert? BMP files are usually larger than PNG, but you gain legacy windows applications. note that PNG transparency is not supported in BMP — transparent areas are filled with a white background.
Upload one file or a whole batch — conversion happens over a secure HTTPS connection and finished files are automatically deleted from our servers within minutes. BMP stores raw uncompressed pixels — files are enormous compared with any modern format.
| Attribute | PNG | BMP |
|---|---|---|
| Full name | Portable Network Graphics | Bitmap Image File |
| Introduced | 1996 | 1987 |
| File extension | .png | .bmp |
| Compression | Lossless | Uncompressed |
| Transparency | Yes | No |
| Animation | No | No |
| Typical file size | Large | Very large |
| Compatibility | Every modern browser and OS | Supported by browsers but rarely used on the web |
| Best for | Logos, screenshots, UI graphics, images that need transparency | Legacy Windows applications |
When to convert PNG to BMP
- Standardize mixed image libraries on BMP for consistent tooling
- Meet upload requirements for sites that only accept BMP
Frequently
Asked
Questions
Quick answers about this PurePDF workflow.
How do I convert PNG to BMP?
Upload your PNG files on this page. PurePDF opens the conversion workspace with BMP preselected — click Convert and collect the finished files from the download hub.
What happens to transparency when converting to BMP?
BMP 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.
Why is my BMP file larger than the original PNG?
BMP prioritizes compatibility over compression, so files are usually larger than PNG. That is normal and expected.
Is the PNG to BMP 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 BMP in one run.