NDA & NA (All Categories) Official
Signature Compressor (2026)
Compress your signature to the strict 20KB–200KB limit required by National Defence Academy & Naval Academy. Enforces black ink rules.
Official Signature Specifications
- File size: 20KB – 200KB
- Ink color: black
- MANDATORY: Image must contain EXACTLY THREE identical signatures signed vertically (one below the other).
- Must be signed on plain, unruled white paper using only BLACK ink.
How to Use
Upload Signature
Take a clear photo of your signature on plain white paper.
Auto-Process
Our tool removes dark backgrounds and compresses to the strict 20KB–200KB NDA requirements.
Download
Save the processed file. It is now ready for the NDA portal.
FAQ
Is this signature tool officially provided by NDA?
No. FreeApplyTools is an independent utility. The engine follows official NDA notification rules for 2026.
Why is my signature being rejected?
Signatures are often rejected if in wrong ink color (e.g., blue when black is required), on lined paper, or over 200KB. Our tool fixes the file size.
Common NDA & NA (All Categories) Signature Upload Errors
"File size exceeds 200KB"
The NDA portal blocks uploads above 200KB. Our compressor automatically reduces to 20–200KB.
"Signature not in black ink"
Many applicants sign in blue or pencil. NDA explicitly requires black ink on plain white paper.
"Signature scanned on lined/ruled paper"
Use blank white paper. Notebook lines in the scan are a common rejection reason across government exam portals.