Bit Depth Information
BMP supports various bit depths, each with different characteristics:
- 32-bit: Full color with alpha channel (transparency) - highest quality (100%)
- 24-bit: Full color (16.7 million colors) - high quality (90%)
- 16-bit: High color (65,536 colors) - medium quality (80%)
- 8-bit: 256 colors or grayscale - medium quality (70%)
- 4-bit: 16 colors - low quality (60%)
- 1-bit: Black and white only - low quality (60%)
Quality Settings
The quality slider automatically adjusts the bit depth for optimal results:
- High (100%): 32-bit with transparency preservation
- High (90%): 24-bit standard RGB color
- Medium (80%): 16-bit reduced color depth
- Medium (70%): 8-bit grayscale or 256 colors
- Low (60%): 4-bit or 1-bit for smallest file size
Transparency Handling
Different options are available depending on the selected bit depth:
- Preserve Alpha: Only available with 32-bit depth, maintains transparency
- White/Black Background: Replaces transparent areas with selected color
- Custom Color: Replaces transparent areas with a color of your choice
About PNG to BMP Conversion
PNG (Portable Network Graphics) is a modern image format that supports lossless compression.
BMP (Bitmap) is a standard image format often used for raster graphics in Windows environments.
This converter allows you to transform your PNG images into BMP format. The conversion process preserves as much quality as possible while giving you control over the bit depth and quality settings.