BMP to PBM
- Step 1: Upload your BMP images. Drag and drop up to 20 files or click to choose them. Large files are welcome.
- Step 2: The conversion starts automatically. If you want to rescale, set the width and height in the settings below before the upload finishes. When you add more than one file, the results will be bundled into a single ZIP for download.
- Step 3: Download your PBM files for free. Remember that PBM is strictly black and white. For grayscale, try converting to PGM; for color, use PNG or JPG.
You can upload up to 20 images at once. Large files are supported and there are no daily limits beyond fair use.

Width (px):
Height (px):
Leave a dimension on Auto to keep it unchanged.
Expert Settings:
Customize options
