How to reduce image size for form
- Check the maximum file size shown by the upload form.
- Choose your image in the compressor.
- Set a practical max width and compress at balanced quality.
- Download and retry the upload.
Recommended settings
65% to 82%
900 to 1600 px
JPG for photos, PNG for screenshots, WebP for websites that accept it
Resize large phone photos first, then lower quality only as much as needed.
Practical explanation
The upload field rejects the image because the file is too large or the dimensions are excessive.
Forms often need smaller images than phone cameras create, so resize before compressing.
Use compression for smaller byte size, resizing for fewer pixels, and conversion when the current format is not right for the destination. Very small targets can require visible tradeoffs, so compare the preview before downloading.
FAQ
Why does my upload fail?
Most upload failures happen because the image exceeds a file-size, dimension, or format limit.
What size should I choose?
Use the exact limit from the form when available. If none is shown, try 500KB to 1MB for photos.
Should I use JPG or PNG?
Use JPG for photos and PNG for screenshots or transparent graphics.
Can I use this on mobile?
Yes. The workflow works in modern mobile browsers.
Will compression remove quality?
Some settings can. Preview the result and reduce dimensions before using very low quality.