Precise
Hit the exact limit your upload portal expects.
Tiny signature uploads
Compress signature to 20KB online for application forms, exam portals, and online uploads.
Hit the exact limit your upload portal expects.
Your file stays in your browser instead of being uploaded to a server.
Open the tool, hit the target, and download the result in one flow.
First file free. More files today are $3.99. No upload, no guessing.
iLoveIMG is a broad image toolkit. This page is for the narrower problem where a portal only cares whether your signature image lands under 20 KB and uploads on the next try.
Signature uploads are a narrow problem. The file is simple, the cap is tiny, and most people only discover the limit after a portal rejects the first attempt.
Use UnderByte when the job is simply getting one signature under 20 KB. Use iLoveIMG when you still need to crop, resize, convert, or work across several images and sources.
UnderByte is the more focused fit when the only goal is passing a strict signature upload limit. iLoveIMG is stronger when the work includes broader image editing.
Yes. iLoveIMG also offers resize, crop, convert, rotate, and other image tools.
Because the user intent is specific and urgent. A dedicated 20 KB signature page keeps the path from search to successful upload much shorter.
Yes. That is exactly the use case for this page. As general image-prep advice, a tightly cropped signature usually compresses better because blank space is not wasting bytes.
Use this page when you need Compress Signature to 20KB Online for a form, portal, or email attachment. UnderByte lets you aim at the limit directly instead of guessing export settings over and over.
For photos, signatures, and profile pictures, crop tightly before compressing so you are not wasting bytes on blank space. JPG usually reaches strict limits faster than PNG.
Compress a photo to 20KB online for exam forms, application portals, and tiny upload limits. Runs in your browser.
Make photo size under 50KB online for strict upload forms, exam portals, and profile photo requirements.
Compress a photo to 100KB online for profile pictures, application forms, and document portals without uploading it to a server.
Compress a JPG under 50 KB locally with exact target-size compression.