Compress Image to 100KB (Exact Lock)
Reduce JPG, JPEG, and PNG image file sizes to exactly 100 KB, 50 KB, or 20 KB using our 14-pass binary search quantization engine with zero visible blur or text degradation.
Exact ±0.5% Precision • Batch ZIP
🛡️ 100% Client-Side Private • Zero Server Uploads
Every tool you need to work with PDFs & Documents in one place
Fast client-side PDF conversions, compression, Sarkari exam photo/signature resizing, and A4 ID multi-printing directly in your browser.
🔍 Search tools (e.g. compress, sarkari photo, merge, a4 id)...
Complete Online Utility & Document Processing Suite
Passport Size Photo Maker (35×45mm)
Create standard Indian passport (35x45mm), 2x2 inch US Visa, Stamp size, and PAN Card photos. Features white background changer, candidate name and Date of Photo (DOP) strip, and 4x6 / A4 multi-copy print sheets.
300 DPI High-Res • ICAO StandardSarkari Photo & Signature Resizer (20KB - 50KB)
Optimize photographs and official signatures to exact dimensions and KB limits required by SSC CGL, CHSL, MTS, UPSC, IBPS Banking, State Police, and Railway recruitment portals.
Govt Portal Compliant • Zero BlurAadhaar, PAN & Voter Card A4 Print Layout
Arrange front and back sides of Aadhaar cards, PAN cards, Driving Licenses, and Ayushman cards onto standard A4 photo paper with exact 86×54mm credit-card dimensions and cut marks.
Cyber Cafe Essential • 1:1 Scale PrintCompress PDF to 100KB, 200KB, 500KB
Reduce large PDF documents, certificates, and marksheets to exact KB limits while preserving crystal-clear vector text and stamps. 100% private in-browser WebAssembly processing.
Lossless Vector Text • Multi-Page SupportMedical Leave & Fitness Certificate Maker
Draft authentic medical sick leave slips, fitness certificates, and work resumption forms with customizable clinic letterhead, doctor registration number, diagnosis presets, and circular rubber stamp.
A4 300 DPI PDF • Verification QR CodeComprehensive Guide to Document & Photo Formatting for Government Examinations
Applying for Indian government competitive exams such as SSC CGL, CHSL, MTS, UPSC Civil Services, NDA, CDS, IBPS PO/Clerk, State Public Service Commissions (UPPSC, BPSC, MPPSC), and National Testing Agency (NEET, JEE Main, CUET) requires strict adherence to digital upload guidelines. Portals enforce automated server-side filters that instantly reject application forms if photograph file sizes exceed 50 KB, if signature files exceed 20 KB, or if dimensions fail to match exact aspect ratios.
Official Photograph Specifications (SSC / UPSC / NTA)
- Dimensions: 3.5 cm (width) × 4.5 cm (height) or 350 × 450 pixels.
- File Size Limit: Strictly between 20.0 KB and 50.0 KB (JPEG/JPG format).
- Background: Pure solid white or light-colored background without shadows.
- Face Coverage: 70% to 80% face coverage with both ears clearly visible.
- Recruitment Banner: Candidate full name and Date of Photo (DOP) printed at bottom if mandated.
Official Signature Specifications (IBPS / SSC / Police)
- Dimensions: 4.0 cm × 2.0 cm or 140 × 60 pixels (standard 7:3 aspect ratio).
- File Size Limit: Strictly between 10.0 KB and 20.0 KB.
- Ink Color: Running handwriting in dark black or blue ink on pure white unruled paper.
- Prohibitions: Capital letter signatures and digital scanned stamps are strictly disallowed.
100% In-Browser Client-Side Processing & Data Security Architecture
Unlike traditional cloud-based file conversion websites that upload sensitive personal documents, identity cards (Aadhaar, PAN, Passport), and medical certificates to remote web servers, SetKB operates entirely inside the user's browser sandbox using modern WebAssembly (Wasm) binaries, HTML5 Canvas 2D context, and hardware-accelerated Web Workers.
🛡️ Zero Cloud Storage
Your documents, photographs, and PDF files never leave your device. All computations run in local RAM.
⚡ Sub-Second Speed
Eliminating upload and download network bottlenecks allows instant compression and conversion in under 0.1 seconds.
🔒 Full Offline Support
SetKB functions as a Progressive Web App (PWA) that continues to operate seamlessly even without an active internet connection.
Frequently Asked Questions (FAQs)
Q1. How does SetKB compress images to exact 100 KB or 50 KB without quality loss?
SetKB utilizes a 14-pass multi-resolution binary search algorithm that iteratively solves for the exact mathematical quantization curve matching the desired byte threshold (e.g. 102,400 bytes for 100 KB). This guarantees that text remains sharp and edges retain contrast without visible pixelation.
Q2. Are my uploaded Aadhaar cards, PAN cards, or certificates stored on your servers?
No. SetKB enforces a strict zero-upload architecture. All file manipulations (cropping, resizing, PDF merging, compression) occur locally within your web browser's isolated JavaScript memory sandbox. Zero bytes of file data are ever transmitted across the internet.
Q3. Is SetKB completely free to use for commercial and personal purposes?
Yes. SetKB is 100% free with no account registration, no watermarks, no subscription fees, and no file quantity limitations. It is designed for students, job applicants, and cyber cafe operators across India.
Q4. How can I contact the SetKB team or report an issue?
You can contact our support team anytime via email at support@setkb.com or visit our dedicated Contact Us page.