Convert BMP to PDF
BMP is an uncompressed Windows bitmap that keeps full pixel detail at a large file size. Converting to PDF wraps the picture in a document instead of an image file, which is what printers, email attachments and upload portals tend to expect. The conversion runs entirely in your browser: there is no upload, no file size limit and no watermark on the result.
Drop your BMP files below and download PDF in seconds. Free, unlimited and completely private: the conversion runs inside your browser, so your files never leave your device and are never uploaded to a server.
No upload. Works with your network switched off. Check it yourself, or read what actually happens to your file.
Why convert BMP to PDF?
BMP stores pixels with little or no compression, which makes files huge but trivially simple to read. It is mostly seen in legacy Windows workflows, screenshots from older tools and some scientific software. Converting to a compressed format usually shrinks a BMP by 90 percent or more.
PDF is the universal format for documents that must look identical everywhere. Wrapping images in a PDF makes them easy to print, email or archive as a single file, and every operating system can open the result without extra software.
BMP vs PDF at a glance
| BMP | ||
|---|---|---|
| Full name | Bitmap image | Portable Document Format |
| Compression | Uncompressed | Document container |
| Transparency | No | No |
| Best for | Legacy Windows software and raw pixel data | Documents, sharing and printing |
What changes when you convert BMP to PDF
| What happens | |
|---|---|
| Image quality | Slightly reduced. The image is embedded in the PDF as JPEG at quality 0.92, which is visually close but not identical. |
| Transparency | BMP has no alpha channel, so there is no transparency to lose. |
| EXIF and GPS | Removed. The conversion goes through a pixel buffer, so camera data and location are not carried into the PDF file. |
| Colour profile | Not carried across. The image is handled in sRGB, which is right for the web and wrong for colour-managed print work. |
| Animation | Not applicable. BMP files here are single images. |
| File size | Varies with the content of the image. No figure is quoted here, because none has been measured on a documented test set. |
How to convert BMP to PDF
- Drop one or more BMP files into the box above, or click to browse.
- ImageConvert converts each file to PDF right on your device.
- Download a single file, or grab everything at once as a zip.
Frequently asked questions
What is a BMP file?
BMP is an uncompressed Windows bitmap that keeps full pixel detail at a large file size.
What is a PDF file?
PDF is the universal document format, handy for sharing or printing images.
Is it free to convert BMP to PDF?
Yes. There are no limits, no watermarks and no account needed. Convert as many BMP files as you like.
Are my files private?
Completely. Your BMP files never leave your browser and are never uploaded to a server, so your images stay on your device.