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ExactKB

UPSC Signature Clean & Compress Tool

Clean paper background to pure white and compress signature to 20–300 KB for UPSC Civil Services online application.

Active Preset Loaded
1-Click Quick Exam Presets
Photo:20–300 KB(350×350px @ 200DPI)
Signature:20–300 KB(350×350px)
Name & Date Required
Mandatory: Candidate name & date of photo must appear clearly at the bottom.
🔒Processed 100% locally in your device RAM • Zero Cloud Storage
1

Passport Photo (Portrait)

350×350px • 200 DPI
20–300 KB
2

Candidate Signature (Landscape)

350×350px • 20–300 KB
20–300 KB

Pre-Flight Upload Verification

Real-time validation against official TCS & NIC upload specifications

Awaiting Verification
1. File SizePending
2. DimensionsPending
3. DensityPending
4. Color SpacePending
5. FilenamePending
Know fellow aspirants? Help them prevent form rejection:

Official Candidate Resources & Verification Portals

UPSC Online PortalGovt Official

Official portal instructions for signature submission

Frequently Asked Questions & Compliance Insights

Why do portals reject images under 20 KB?

Many online application systems enforce strict minimum byte thresholds to reject over-compressed photos. ExactKB injects benign JPEG COM comments to bring files safely above the minimum limit without modifying pixels.

Why is 200 or 300 DPI density required?

Automated portal validators inspect the APP0 JFIF header. Standard smartphone photos default to 72 or 96 DPI, causing automated rejections. ExactKB writes standard 200/300 DPI headers directly into the stream.

How does ExactKB guarantee privacy?

All image compression, HEIC decoding, thresholding, and name/date stamp overlays run 100% locally in your browser’s volatile RAM. No image data is ever uploaded to any server.