PDF to BMP
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BMP to PDF Converter
Turn bulky BMP bitmaps from Paint, scanners and older programs into one PDF that is far smaller and easy to share.
Turn Windows BMP bitmaps from Paint, scanners and older software into a PDF, one image per page. Siliph is free, needs no account, and processes files on secure servers in Europe and India, or directly in your browser where possible.
Loading the BMP to PDF workspace… Files are processed securely and deleted automatically.
BMP to PDF converts Windows bitmap images into a single PDF, one image per page. Each bitmap is stored with lossless compression, so the PDF is usually much smaller than the BMP files while every pixel stays the same. It runs in your browser, is free and needs no account.
Step by step
Drag your bitmaps into the drop zone or click Choose BMP images. The order of the list is the page order, so add the first page first.
Press the process button. Each bitmap is decoded in your browser, compressed losslessly and placed on a page that matches its size in pixels.
Click Download. One bitmap is saved as a PDF with the same name; two or more are saved together as images-combined.pdf.
Features
Raw BMP pixels are packed with lossless compression inside the PDF, so a folder of heavy bitmaps usually becomes a file that is far easier to email.
Lossless storage means thin lines in a Paint drawing or small text in a screenshot look identical in the PDF, without the blur that JPG compression adds.
The images are read and the PDF is built in your browser, so the BMP files never leave your device while they are converted.
BMP files usually hold raw, uncompressed pixels, which is why a single screenshot can weigh several megabytes. Your browser decodes each bitmap and stores it inside the PDF as a lossless PNG, which shrinks the data without changing a pixel. Every page is sized to its bitmap and the pages follow the order of the file list.
BMP is the native bitmap format of Windows. Paint saves it by default, and plenty of older scanners, lab instruments and line-of-business programs still export it. Because most bitmaps store every pixel uncompressed, a full-screen BMP can be ten times the size of the same picture as PNG, and many web forms reject the format outright. Converting to PDF solves both problems at once.
The converter keeps each bitmap at its native resolution and gives it a page of the same proportions. If the pages must fit standard paper with a margin, save the bitmaps as PNG first and run them through JPG to PDF, which offers paper sizes. A mixed folder that also holds JPG, HEIC or TIFF files can go through Image to PDF in one batch, and GIF to PDF covers the other legacy web format.
Lossless storage keeps the file faithful but not always tiny when the bitmaps are large photos. In that case, Compress PDF can shrink the result further. To go the other way and turn PDF pages into bitmaps for an older program, use PDF to BMP.
Every step happens in your browser on your own device, and the PDF is written straight to your downloads folder. The tool is free, needs no account and does not stamp a watermark on the pages.
Compared
Last checked 22 October 2026. Competitor facts come from their public pages on that date; prices and limits change, so confirm before you decide.
| Feature | Siliph | Adobe Acrobat online | Smallpdf | iLovePDF |
|---|---|---|---|---|
| Price for this tool | Free, every tool, unlimited tasks | Free online tools; Acrobat Standard $14.99 per month (annual plan) | About 2 free tasks per day; Pro about $15 per month (about $9 billed yearly) | Free with per-tool limits; Premium 500 INR per month (242 INR billed yearly) |
| Free file size limit | 200 MB per file, 2000 pages | Not stated on the page we checked | Not stated on the page we checked | 15–200 MB depending on the tool (4 GB on Premium) |
| Files per task on the free tier | Up to 50 files per task | Not stated on the page we checked | Not stated on the page we checked | Set per tool (merge 25, compress 2, PDF to Word 1) |
| Account required | No account needed | Sign in to save or share the result | Not stated on the page we checked | Not stated on the page we checked |
| Where files are processed and when they are deleted | Encrypted upload, deleted within 2 hours | Cloud processing; deletion window not stated on the page we checked | Cloud processing; files deleted after 1 hour | Cloud processing; deletion window not stated on the page we checked |
| Watermark on output | None | Not stated on the page we checked | Not stated on the page we checked | Not stated on the page we checked |
Most BMP files store pixels with no compression at all. The PDF stores the same pixels with lossless compression, which removes the waste without changing how the image looks.
No. The bitmap is stored losslessly, so every pixel in the PDF matches the original. Text in screenshots and fine lines in drawings stay as sharp as they were.
Any bitmap your browser can display, which covers the 24-bit and 32-bit files from Paint and most 8-bit palette bitmaps from older software. A file the browser cannot open shows an error.
Each page has the same width and height as its bitmap in pixels, so nothing is cropped or stretched. A wide screenshot gives a wide page and a small icon a small one.
Yes. Add all the BMP files at once and they are joined into a single document called images-combined.pdf, ordered the same way as the file list.
It is free with no account or watermark. The conversion is processed in your browser, so the BMP files never leave your device and you can close the tab as soon as the PDF has downloaded.
Add BMP to PDF to your blog or website for free. The attribution snippet includes a link back to Siliph.
Embed code (iframe)
<iframe src="https://siliph.com/bmp-to-pdf/?embed=1" title="BMP to PDF — Siliph" width="100%" height="620" style="border:0;border-radius:12px;max-width:900px;" loading="lazy" allow="clipboard-write"></iframe> <p style="font-size:12px;color:#666;margin-top:8px;"><a href="https://siliph.com/bmp-to-pdf/" title="BMP to PDF — Siliph">BMP to PDF</a> powered by <a href="https://siliph.com/" title="Siliph — Free PDF Tools">Siliph</a></p>
Link for blog posts and tool lists
<p style="font-size:12px;color:#666;margin-top:8px;"><a href="https://siliph.com/bmp-to-pdf/" title="BMP to PDF — Siliph">BMP to PDF</a> powered by <a href="https://siliph.com/" title="Siliph — Free PDF Tools">Siliph</a></p>
Direct link: https://siliph.com/bmp-to-pdf
Turn bulky BMP bitmaps from Paint, scanners and older programs into one PDF that is far smaller and easy to share.
or drop files here
Turn Windows BMP bitmaps from Paint, scanners and older software into a PDF, one image per page. Siliph is free, needs no account, and processes files on secure servers in Europe and India, or directly in your browser where possible.