Compress the file with ZIP, RAR, or 7z
Reduce image resolution
Save images in a more efficient format like WebP or JPEG
Lower image quality settings
Remove unnecessary metadata
Convert video to a smaller codec like H.264 or H.265
Lower video resolution
Lower video bitrate
Trim unwanted parts of the file
Remove duplicate or unused content
Convert documents to PDF and optimize them
Reduce audio bitrate
Use file optimization tools
Split large files into smaller parts
Delete embedded fonts or objects
Use grayscale instead of color when possible