How to shrink an image under 100 KB

Get a photo under 100 KB for forms with a very tight size cap.

Updated Aug 20, 2026

To get an image under 100 KB, combine two steps: reduce its dimensions if it is very large and then compress it. Check the weight at the end.

Get under 100 KB step by step

Resize if it is hugeIf the photo has many pixels, reduce it first to the dimensions you need.
Compress the imageRun it through the image compressor to drop the weight.
Check the sizeLook at the result’s weight; repeat if it is still over 100 KB.

Quick answers

Almost always, combining a reasonable pixel size with compression. A very large photo needs resizing first.

At small sizes you may notice something, but for a form photo it is usually perfectly valid.

Dropping the pixel dimensions usually has more impact than compressing alone. Combining both is the most effective.