Signature resizer
Signature resize to 20 KB
Under 20 KB, still readable. Upload your signature and download a form-ready JPEG.
File size
5–20 KB
Dimensions
300×150 px
Format
JPEG
Signature
300×150px · 5–20 KB🔒 Image processed on your device · Check your current form instructions
How it works
- Upload a scan or photo of your signature (JPG or PNG, any size).
- We centre-crop the image to 300×150 px and tune JPEG quality within 20 KB. Check the result is at least 5 KB; this minimum is not guaranteed.
- Download and upload it after checking your current form requirements.
Everything runs on your device — your signature is never sent to a server.
Forms using this size
- Forms explicitly accepting 300×150 px and this file-size range
Getting the scan right
- •20 KB is the single most common signature limit across Indian portals.
- •Black ink on white paper compresses far better than blue on cream paper.
Frequently asked questions
- How do I reduce my signature to 20 KB?
- Upload the image above — the tool automatically compresses it to just under 20 KB while keeping the strokes sharp.
- Is my signature uploaded to a server?
- No. ShantiTools processes the image entirely inside your browser — the file never leaves your device.
हस्ताक्षर का साइज़ कैसे कम करें
- •फ़ॉर्म के लिए ज़रूरी साइज़: 5–20 KB, 300×150 पिक्सेल, JPEG फ़ॉर्मेट।
- •सफ़ेद कागज़ पर काले या गहरे नीले पेन से हस्ताक्षर करें और अच्छी रोशनी में फ़ोटो लें या स्कैन करें।
- •फ़ाइल चुनने के बाद उसका साइज़, पिक्सेल और प्रीव्यू फ़ॉर्म के नियमों से मिलाएँ।
- •फ़ाइल आपके फ़ोन में ही बनती है, किसी सर्वर पर अपलोड नहीं होती। यह टूल पूरी तरह मुफ़्त है।
Other signature sizes
Companion tools for form fillers
Most forms ask for a photo, a signature and sometimes a thumb impression. Do all three here.
Thumb impression
Popular photo sizes
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