Photo Compression vs Deletion: Which Saves More Space?
Compression and deletion solve different problems. Deletion removes the file. Compression keeps a version while reducing its storage size.
Choose deletion for true clutter
If you have ten identical screenshots and need only one, deleting nine copies is the clearest way to save space. There is no reason to compress files you do not need.
Choose compression for memories you want to keep
A large photo that you rarely print may not need the original file size. Compression can make sense when storage is limited and you still want the image available.
Compare quality before replacing originals
Compression settings vary. Look at faces, text, edges and fine details. If the result is visibly worse, keep the original and use another approach.
Keep originals for important work
Professional photos, evidence, documents and images you may edit later are better kept in their original form or backed up separately.
Clean first, compress second
A practical order is to remove obvious duplicates and expired screenshots first, then compress large photos that you still want. This prevents you from spending time processing files that were going to be deleted anyway.