Quick answer
How do I resize a photo or signature to 20KB?
Upload the image on PhotoResizerKB's 20KB page, keep the 10–20KB preset and press Resize. The file is compressed to between 10KB and 20KB — the range most SSC, bank and railway forms use for signatures — and downloaded as a JPEG.
About This Tool
A 20KB limit is common for signature uploads (10–20KB) and for older exam portals that still cap photographs at 20KB. The result stays sharp enough for an ID-style face photo.
Commonly needed for:
- Signature upload for SSC, Bank and Railway forms (10–20KB)
- Scholarship and college admission portals
- Government job applications with strict limits
How to Use
- Tap the upload box and choose your photo (JPG, PNG or WEBP).
- The 20KB preset is already selected — change Min/Max KB only if your form asks for a different range.
- Press Resize to Target KB. The tool tries different quality levels until the file fits under 20KB.
- Check the new size shown in the result box and download the JPEG.
Tips for a Photo That Gets Accepted
- Start from the original photo from your camera or gallery, not a WhatsApp-forwarded copy — it keeps more detail after compression.
- If the form also gives pixel dimensions, crop the photo first with the Image Cropper, then come back here.
- Output is always JPEG, which most upload forms accept. If a form insists on PNG, use the Image Format Converter after resizing.
Frequently Asked Questions
How do I reduce a photo to 20KB?
Upload the photo above, keep the 20KB preset and press Resize. The tool adjusts JPEG quality (and size, if needed) until the file is between 10KB and 20KB, then gives you a download button.
Will my photo be uploaded to a server?
No. The compression runs inside your browser using the Canvas API, so the photo never leaves your phone or computer.
What does "photo 20KB to 50KB" mean on a form?
It means the file must be at least 20KB and at most 50KB. Use the 50KB page for that range — this page targets files up to 20KB.
Is 20KB enough for a passport-size photo?
Yes, for on-screen form uploads. A 20KB JPEG of a cropped face photo is clear enough for verification. For printing, keep the original high-resolution file.
Last updated: October 2026