Convert BMP to PDF
Turn your BMP images into a PDF right in your browser — add one or many, drag to reorder, and download a single document. Free, with no watermark or sign-up.
Drop images to make a PDF
Drag & drop, paste, or pick files — one or many
JPG · PNG · WebP · HEIC · GIF · BMP — your PDF is built on your device
How to convert BMP to PDF
- Add your BMP files — drag them onto the tool, choose files, or paste from your clipboard. Add as many as you like.
- Put them in order — drag the thumbnails or use the arrows so the pages are in the sequence you want.
- Set the page — pick A4, Letter or fit-to-image, then adjust the margin and fit if you need to.
- Download your PDF — save one combined PDF, ready to print, email or upload.
Why convert BMP to PDF?
A PDF turns your BMP images — uncompressed Windows bitmap images — into one tidy document that looks the same on every device and is easy to print, email or upload as a single file. Converting BMP to PDF here is instant and happens entirely on your device.
How BMP becomes a PDF
BMP is an uncompressed Windows bitmap that stores every pixel raw, which makes the files very large but perfectly lossless.
Each BMP is decoded and re-drawn to PNG before being placed on the page, which keeps the image lossless while producing a far smaller PDF than the raw bitmap would imply.
- Source format
- BMP
- How it's added
- Decoded to PNG, then placed
- Pages
- One page per image, in the order you arrange them
When to use BMP to PDF
Old scans, exports from legacy Windows software and clip-art often arrive as bulky BMPs; converting them to a PDF is an easy way to both bundle and dramatically shrink them for sharing.
Tip
Because BMP is uncompressed, the source files can be huge — they're capped at 5000 px on the longest edge during conversion, which keeps the PDF light without any visible loss at normal page sizes.
Page sizes you can choose
Pick a standard document size for uniform pages, or fit each page to its image for borderless results. Sizes are shown in millimetres, inches and PDF points (1 pt = 1/72 in).
| Page size | Metric | Imperial | PDF points |
|---|---|---|---|
| A4 | 210 × 297 mm | 8.27 × 11.69 in | 595.28 × 841.89 pt |
| Letter | 216 × 279 mm | 8.5 × 11 in | 612 × 792 pt |
| Fit to image | Matches the image | Matches the image | Per-image (no margins) |
How the image fits the page
When the page size is larger than the image (A4 or Letter), the fit mode decides how the picture sits on the page. Orientation can be left on auto, which matches each page to its own image, or forced to portrait or landscape.
- Contain
- Scales the whole image to fit inside the page; any leftover space is filled with the page background colour (letterboxing). Nothing is cropped.
- Cover
- Scales the image to fill the entire page, cropping whatever overflows the edges. No empty borders, but parts of the image can be cut off.
- Actual size
- Places the image at its native size (one image pixel to one point), centred on the page, and only shrinks it if it would overflow. Best for keeping a known print size.
Other conversions
Frequently asked questions
How do I convert BMP to PDF?
Add your images above — drag and drop or choose files — arrange them in the order you want, then click Download PDF. The document is built in your browser and downloads straight to your device.
Can I combine several images into one PDF?
Yes. Add as many images as you need and they become one multi-page PDF, one image per page, in the order you arrange them. You can also choose to get a separate PDF per image inside a zip.
Will my images lose quality in the PDF?
JPG and PNG pages keep their original pixels with no re-compression. Other formats are converted at high quality and very large images are scaled to a sensible page size, so the PDF stays light while looking sharp.
Is this free?
Yes — completely free, with no watermark and no sign-up. There's no limit on how many PDFs you create.
Where is my image processed?
The PDF is built in your browser, so your images are processed on your own device. How any data associated with the tool is handled is described in our privacy policy.