A 500 KB photo limit is common on application forms, portals and upload systems. The goal is not to make the file exactly 500 KB; it is usually enough to stay below the limit while keeping the image clear enough for its intended use.
Start with the pixel dimensions
If the source photo is very large, reduce its width and height first. Upload systems rarely need the full resolution produced by a modern camera or phone.
Then optimize quality
Compression quality has a direct effect on file size. Lower the quality gradually and inspect the result. For photos, a moderate setting can often reduce size significantly without obvious damage at normal viewing size.
Consider the output format
WebP can be efficient for modern web workflows, while JPG offers broad compatibility. Use the format accepted by the service where you plan to upload the file.
Use Picora Tools
Reduce Image Below 500 KB automatically searches for a suitable quality level. If the source is extremely large, use Resize Image first.