Compress BMP Images for Podcast
Podcast cover art is displayed at many sizes across Spotify, Apple Podcasts, and podcast apps. A properly compressed cover image uploads quickly and looks sharp at all display sizes. Uncompressed Windows bitmap format with very large file sizes. Not suitable for web use without compression. Use ImageSmith to compress your BMP images to the ideal file size for Podcast — target under 3,000KB for optimal performance. Processing is fully browser-based — no server uploads, no privacy risk.
Recommended format
JPEG
Max file size
3,000KB
Dimensions
3000×3000 (maximum), 1400×1400 (minimum required)
✓Apple Podcasts requires minimum 1400×1400, maximum 3000×3000 pixels
✓JPEG is recommended by most podcast platforms for photos
✓Keep file size under 3MB for fast platform processing
✓Use sRGB color space — same color appears consistently across players