Pariksha Guru

Yes, 100% private and client-side. Unlike other online resizers that upload your files to remote cloud servers, Pariksha Guru runs entirely within your device's browser memory (RAM) using the HTML5 Canvas API and JavaScript TypedArrays.

Your photos, signatures, and thumb impressions are never transmitted across the network, never stored on our servers, and never seen by anyone else. You can even disconnect your internet after the page loads and continue formatting your files completely offline.

Most Indian examination portals (such as Staff Selection Commission and Institute of Banking Personnel Selection) enforce both a maximum AND a minimum file size limit (e.g., between 20 KB and 50 KB for photos, and 10 KB to 20 KB for signatures).

Standard compression tools often compress clean signatures down to 6 KB–9 KB, causing the portal script to trigger an automated "File size out of range" error. Pariksha Guru solves this with its ISO byte-padding engine, ensuring your file always weighs safely between the minimum and maximum boundaries.

ISO/IEC 10918-1 is the official international standard defining the JPEG file format. Under this specification, JPEG images support standard Comment Markers (0xFF 0xFE) that store non-visual text metadata without altering pixel values or visual quality.

When an image compresses to a size lower than a portal's required minimum KB limit, Pariksha Guru writes structured, compliant JFIF comment padding into the JPEG header in RAM. The file size expands to the exact required KB target while remaining 100% compliant with government portal image parsers.

For UPSC Civil Services Examination (CSE) and ORA portal applications:
• Photograph: 350 × 450 pixels (Aspect Ratio: 3.5cm × 4.5cm), file size between 20 KB and 300 KB, baseline JPEG.
• Signature: 350 × 450 pixels, file size between 20 KB and 300 KB.

Selecting "UPSC CSE" from the Pariksha Guru dropdown automatically locks these exact parameters.

Yes, absolutely. Pariksha Guru is fully responsive and touch-optimized for Chrome, Safari, Firefox, and Samsung Internet on Android and iOS devices. You can drag and pinch to zoom directly on mobile touchscreens, and tap the WhatsApp or Share App button to send formatted files straight to your contacts or drive.

Cyber Cafe and Common Service Center (CSC) operators can use keyboard shortcuts (1 to 4) to instantly toggle between Photo, Signature, Thumb, and Declaration. Paste candidate files directly with Ctrl+V, format all 4 items, and click "Download All Ready Files" to save all portal-ready files at once, or "Print Slip" for candidate physical records.

When you snap a photo of a signature written on paper, shadows and dim room lighting turn the paper grey or yellow. Our canvas algorithm calculates the high-percentile luminance of the background paper and smoothly maps all pixels brighter than the ink threshold to pure white, while enhancing dark ink pixels for maximum crispness.

No. Pariksha Guru is an independent educational and technical utility. It is not affiliated with, endorsed by, or associated with any government recruitment agency, commission, or testing authority. All exam names are cited strictly for identification purposes under nominative fair use to help students format their application files correctly.