How to convert BMP to PDF
- Add your .BMP file - drop it in the box above or click to browse.
- Convert it to .PDF in a few seconds.
- Download your new .PDF file.
What to expect
- BMP is uncompressed, so the output PDF is usually much smaller - a 10 MB
.bmpoften becomes 1-2 MB. - If the
.bmphas no embedded DPI metadata (common), some converters default to 72 or 96 DPI, which can make the page unexpectedly large or small. - 32-bit BMP files with an alpha channel will have transparency flattened to white in most PDF converters.
Frequently asked questions
Will converting BMP to PDF reduce the file size?
Usually yes - BMP stores raw pixel data with no compression, while PDF writers apply internal compression. A 10 MB
.bmp can shrink to 1-2 MB as a PDF.Can I combine multiple BMP files into one PDF?
Yes. On Windows, select all
.bmp files, right-click > Print > Microsoft Print to PDF (each file becomes one page). With ImageMagick, run magick *.bmp combined.pdf to merge them.Does the conversion lose image quality?
Print-to-PDF and Preview export preserve visual quality. ImageMagick applies JPEG compression by default inside the PDF; add
-compress Lossless to avoid any quality loss.Why does the image look tiny or huge in the PDF?
BMP files often lack embedded DPI information, so the converter falls back to a default (72 or 96 DPI) that may not match the intended print size. Set the resolution explicitly before converting.
Our free PDF toolsAll tools →
Programs that convert BMP: Picture Resize Free Online Images Converter · Adobe Illustrator · Ability Photopaint · Adobe Fireworks · XnView · Adobe Illustrator for Mac · Adobe Fireworks for Mac · LibreOffice Draw
