PROBLEM-SOLVING GUIDE ·
How to Reduce Photo Size While Keeping Details Readable
Check upload requirements, resize large pictures and compare JPG, PNG and WebP before compressing photos in bulk.
Understand the problem
When an upload form rejects an image, read its file-type and size requirements first. The smallest file is not useful if important text or product details become unreadable.
How to solve it
Check upload restrictions before editing
Confirm permitted extensions, maximum file size and any pixel dimensions listed by the recipient. Renaming the extension does not convert the actual image encoding.
Resize a copy without deleting the original
If the image has more pixels than needed, use Windows Paint or macOS Preview to resize it. Save a new copy so the untouched original remains available.
Compare formats and inspect the output
Try JPG or WebP for photographs. PNG may be needed for transparency. Reopen each output and inspect small text and important image details before submitting.
Another way to do this
When the method may not work
Lossless PNG may not achieve a requested size. Re-encoding can discard metadata, so keep the original photos for reference.
Frequently asked questions
Why does my PNG image remain almost as large as before?
PNG does not use the same lossy quality setting as JPG. If you do not need transparency, compare a JPG or WebP export while checking image quality.