2 cm x 4.5 cm Signature Cropper Online (200 DPI)
Select Signature for 2 cm × 4.5 cm Cropping
Supported formats: JPG, JPEG, PNG2 cm × 4.5 cm Official Signature Cropper & Resizer
Uploading a clear digital signature is a critical requirement when submitting government service forms, online PAN card applications, and official documentation portals. The 2 cm × 4.5 cm Signature Cropper is a web tool engineered to crop, convert, and adjust signatures precisely to 2.0 cm (Height) × 4.5 cm (Width) at 200 DPI resolution, compressing output files strictly below 20 KB.
Why Use Our Online 2cm × 4.5cm Signature Converter?
Standard smartphone camera captures of paper signatures often lead to portal upload errors due to excess resolution, incorrect aspect ratios, or missing DPI metadata. Key advantages include:
- Official Portal Dimensions: Formats signatures accurately to 157 × 354 pixels (2 cm × 4.5 cm physical aspect ratio).
- Automated 200 DPI Header Injection: Encodes required 200 DPI resolution tags directly into the JPEG file header.
- Sub-20KB Compression Engine: Uses intelligent canvas compression to reduce file sizes under 20 KB while preserving stroke sharpness.
- Local Browser Execution: Your uploaded images remain inside your local browser cache for maximum privacy and data security.
How to Crop Your Signature to 2 cm × 4.5 cm
- Upload Signature: Click the selection area above to pick your scanned signature or mobile photo.
- Position Crop Box: Move and drag the crop frame over your signature text.
- Resize Image: Click the teal "Crop & Resize Signature" button to apply the 157×354 pixel grid and 200 DPI tag.
- Download JPEG: Click the download button to get your optimized file ready for portal upload.
Official Technical Specification Standards
| Technical Property | Required Specification |
|---|---|
| Physical Size | 2.0 cm (Height) × 4.5 cm (Width) |
| Pixel Resolution | 157 Pixels (Height) × 354 Pixels (Width) |
| Resolution (DPI) | 200 DPI (Dots Per Inch) |
| File Size Ceiling | Strictly less than 20 KB |
| Output Format | JPEG / JPG Format |
Frequently Asked Questions (FAQ)
What pixel size equals 2 cm x 4.5 cm at 200 DPI?
At 200 DPI, a 2 cm × 4.5 cm dimension converts precisely to 157 pixels in height and 354 pixels in width.
What is the max file size allowed for 2 x 4.5 cm signatures?
Most official application systems require the cropped signature image to be strictly under 20 KB in JPEG format.
How to get a clean signature crop from paper?
Sign with a black or dark blue ink pen on plain white paper, ensure good lighting, and take a clear photo before uploading.