IMA / INA (Military & Naval) Signature Size
Requirements (2026)
Complete official signature specifications for Combined Defence Services 2026 application. Signatures that don't meet these rules will be rejected by the upload portal.
Official CDS Signature Specifications
| File Size | 20KB – 200KB |
| Format | JPEG / JPG |
| Ink Color | black |
| Paper | Plain white (no lines, no ruled paper) |
Additional Requirements
- 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.
Why Signatures Get Rejected on the CDS Portal
Signature exceeds 200KB
High-resolution phone scans often exceed 200KB. The portal blocks any file above this limit.
Wrong ink color used
CDS mandates black ink. Blue or pencil signatures are a common rejection reason.
Signed on lined or ruled paper
Notebook lines visible in the scan are treated as tampering. Always use plain, unruled white paper.
Frequently Asked Questions
What is the exact signature file size for IMA / INA (Military & Naval) 2026?
The official signature file size for IMA / INA (Military & Naval) is 20KB to 200KB in JPEG/JPG format.
What ink color is required for CDS signatures?
CDS requires signatures in black ink on plain white paper for the 2026 application process.
Can I use a digital signature for IMA / INA (Military & Naval)?
Most government exam portals do not accept digital signatures. You should sign on plain white paper with black ink, scan or photograph it, and then use our compressor to meet the exact size requirements.
Need to Compress Your Signature?
Our free tool automatically compresses your signature scan to meet the exact CDS 2026 specifications listed above.
Use CDS Signature Compressor