Home › All tools › Image Compressor – Reduce Photo Size to 20 KB, 50 KB, 100 KB
Compress Photo & Signature to 20 KB Online Free
- Files stay on your device
- No sign-up
- No watermark
- No daily limit
- Full resolution
20 KB is the classic ceiling for scanned signatures and tiny passport-style photos on recruitment portals. The size box below is already set to 20 KB – just add your files and press Compress.
- 1 Upload
- 2 Adjust & process
- 3 Download
How to use
Where a 20 KB limit is used
- Signature uploads: many bank-exam forms ask for a signature between 10 and 20 KB (for example IBPS lists 140 × 60 px, 10–20 KB). Set the max width to 140 first if the form also fixes pixels.
- Low-limit photo slots: some state portals accept photos only up to 20 KB. Compress the cropped face photo, not the full phone picture.
- Old CSC / e-district forms that time-out on bigger files – a 20 KB file uploads instantly even on 2G.
Sizes above are examples from our guides; always confirm the limit in your official notice .
How to compress to 20 KB
- Choose one or more photos.
- The size is already set to 20 KB – change it if your form differs.
- Optionally set a max width (pixels) if the form fixes dimensions.
- Press Compress, then download each file or a ZIP.
Signatures scan best in black ink on white paper. If the result looks grey or blotchy at 20 KB, crop tighter first (with Photo Crop) – fewer pixels means more quality per KB.
Want the background? Read how to reduce photo size to 20–50 KB or use the full Image Compressor. Other targets: 50 KB · 100 KB · 200 KB.
🔒 Privacy: this tool runs entirely in your browser. Your files are never uploaded.
FAQ
Frequently asked questions
Can every photo be reduced to 20 KB?
Yes, but a large phone photo will be scaled down to fit. Cropping to the face or signature first keeps it sharp.
My form says 10–20 KB. Will 20 KB be accepted?
The tool stays at or just under 20 KB, so it fits the upper limit. If it comes out below 10 KB, increase the max width.
Is 20 KB enough for a readable signature?
Yes. A 140 × 60 px signature is usually only a few KB; 20 KB leaves plenty of room.
Do you keep my signature?
No. Compression happens on your device; the file is never uploaded.
How do I compress a signature to 10–20 KB?
Photograph your signature in dark ink on white paper, clean it with the background remover, then compress it to 20 KB here. Resizing to IBPS-style 140×60 px first also helps.
More details
Need a PDF at this size? Try compress PDF to 20 KB. Exam rules: NEET photo size · SBI PO photo size · SBI Clerk photo size.