Remove unnecessary files before compressing
Delete duplicates and temporary files
Compress files with a stronger compression method
Use a higher compression level
Convert large files to more efficient formats first
Resize images and videos before zipping
Split archives only if needed for transfer, not for size reduction
Avoid storing already-compressed files like JPG, MP4, MP3, and PDF when possible
Use ZIP64 only when necessary
Archive folders separately to identify and remove large items
Exclude hidden system files and metadata
Use a different archive format with better compression if allowed
Rename files to shorter names only if filename metadata matters
Check for empty folders and remove them
Recompress the contents after cleaning and optimizing files