What does resizing to 75% mean?
It scales both width and height to 75% of the original. A 2000×1000 image becomes 1500×750. The aspect ratio is always preserved.
Will this reduce file size?
Yes. Reducing to 75% decreases pixel count by 25%, which significantly reduces file size. Exact savings depend on the format and content.
Can I resize back to 100% later?
You can enlarge it back, but quality will be lost since pixels were removed. Always keep your original file as a backup before resizing down.
