BMP to PGM
- Step 1: Add your BMP file(s) using the upload area on the left. You can queue up to 20 images at once. If you need a specific output size, open the settings and enter your desired width and height before you start.
- Step 2: Conversion starts automatically and finishes fast. BMP images are converted to PGM (portable graymap), so color photos become high-quality grayscale. Large files are supported, and you can keep the original dimensions or rescale to fit your project.
- Step 3: Download your PGM file. If you uploaded more than one image, you will receive a single ZIP containing all results. Want a different size or another batch? Adjust the settings and run it again—no sign-up, no limits (within fair use).
You can upload up to 20 images at once. Large files are welcome and there are no daily limits within fair use. Multiple results are delivered as a single ZIP.
Width (px):
Height (px):
Leave a dimension on Auto to keep it unchanged.
Expert Settings:
Customize options
