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OfflineScan
offlinescan.com
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100% Client-Side RAM Execution Works in Airplane Mode Zero Watermarks • $0 Forever

Precision document scanning, SafeID protection & exact-KB portal compliance.

Stop uploading your Aadhaar, PAN, Passport, contracts, and signatures to sketchy ad-farm servers. OfflineScan runs binary-search JPEG quantization, lossless 0xFFFE byte-padding, JFIF 200/300/600 DPI header patching, and diagonal KYC watermarking directly inside your device RAM.

Outbound Network Calls 0 requests (0 B)
Exact-KB Engine Binary-Search + COM Pad
Header Density Patcher 200 · 300 · 600 DPI
Keyboard Driven Press 1–4 or Ctrl+K
01 / Official Application Kits 5 Kits
02 / Required Deliverables Auto-Spec

Candidate Passport Photo

200×230 px • 20–50 KB • 200 DPI
STUDIO COMPLIANT OUTPUT (AFTER)
Processed portal-ready deliverable preview
200×230 px · 34.2 KB · 200 DPI
Drop your own photo / signature here, or click to browse
Processed 100% locally in browser RAM • Built-in sample loaded for instant testing
Choose Image...
Surface & Ink Enhancement Pipeline Real-time
Byte-Budget Telemetry COMPLIANT
34.20 KB Target: 20 – 50 KB
Guaranteed inside portal min/max bounds via binary-search quantization & lossless 0xFFFE padding.
Output Verification Matrix
Exact Pixel Grid 200 × 230 px
Exact Byte Length 35,020 B
JFIF Header Density 200 DPI (JFIF APP0)
Quantization Strategy Binary-Search Q=92
Binary Header Hex Inspector First 24 B
FF D8 FF E0 00 10 4A 46 49 46 00 01
Quantization Execution Log
01 / Sheet Layout Mode
02 / PII Redaction & Masking
03 / Replace Front or Back ID Scan

SafeID Front + Back Stitcher & Anti-Fraud Watermark

Prevents brokers, hotels, or third parties from reusing your ID scan for unauthorized KYC
TAMPER-PROOF CROSS-WATERMARK
SafeID Front and Back stitched preview
760×980 px · 92.4 KB
Diagonal Cross-Watermark Text & Quick Templates
SafeID Output Size
94.0 KB Cap: < 140 KB
Why Cross-Watermarking Matters
Corner watermarks can be cropped off in 3 seconds. OfflineScan stamps a repeating diagonal cross-grid across both cards while keeping your photo and name legible.
JFIF Header Hex
01 / Batch Pages 2 pages
02 / Document Filter Mode
03 / Pages Per A4 Sheet (N-Up Grid)

Multi-Page Document Scanner & Print-Saver PDF Compiler

Zero watermarks • Flattened PDF-1.4 (DCTDecode) guaranteed under your target KB cap
A4 FLATTENED PDF-1.4 PREVIEW
Compiled A4 PDF sheet preview
2 pages → 2 A4 sheets
Target Maximum PDF Size Cap 200 KB
Compiled PDF-1.4 Size
118.4 KB No Watermark
PDF-1.4 Binary Header
01 / Target Upload Size Cap
02 / Source Video Duration 45 sec

ExactMB Deterministic Video Bitrate & Resolution Planner

Computes exact video/audio kbps and optimal resolution scale to land strictly under any MB cap
Deterministic Bitrate Budget
Target Video Stream Bitrate 2,480 kbps
Target Audio Stream Bitrate 128 kbps AAC
Optimal Resolution Scale 1920x1080 (1080p)
Projected Output Container Size 13.95 MB (Cap: 15 MB)
Ready-to-Run Hardware / FFmpeg Command
Native Hardware Encoding on Mobile
In the OfflineScan iOS & Android app, ExactMB uses Apple VideoToolbox and Android MediaCodec hardware acceleration to shrink videos directly from your gallery share sheet with zero ads.
● OFFLINE READY | local RAM only | net 0 req
render 4 ms | exact-kb engine 1.0 | jfif · pdf-1.4 | offlinescan.com
WHY PORTALS REJECT YOUR FILES — AND HOW WE FIX THEM

Engineered for unforgiving government, visa & KYC validators.

Standard image resizers only change pixel width and height. Government portals inspect the raw binary headers and enforce narrow minimum-and-maximum byte windows.

01 / THE UNDERFLOW PROBLEM

Lossless JPEG COM Byte-Padding

A crisp 140×60px signature saved even at 100% JPEG quality is often only 4 KB–7 KB. Portals like SSC & IBPS reject it with "File size must be between 10 KB and 20 KB". OfflineScan injects spec-compliant 0xFF 0xFE comment segments before the End-Of-Image marker so your signature lands at 15.0 KB with zero quality loss.

0xFF 0xFE [LEN] "OFFLINESCAN-PAD" 0xFF 0xD9
02 / THE DENSITY HEADER PROBLEM

True JFIF APP0 200 / 300 / 600 DPI

Protean NSDL and UTIITSL PAN portals inspect the 14-byte JFIF APP0 segment inside your JPEG and reject files stuck at the browser default of 72 DPI or 96 DPI. OfflineScan patches bytes 0x0D–0x11 directly in RAM to set exact 200 DPI, 300 DPI, or 600 DPI headers.

4A 46 49 46 00 01 01 01 [00 C8] [00 C8] (200 DPI)
03 / THE IDENTITY THEFT PROBLEM

SafeID Front+Back & Cross-Watermark

Sending an unmasked Aadhaar or Passport on WhatsApp for a hotel check-in or rent agreement leaves you vulnerable to KYC fraud. SafeID stitches Front + Back onto one page, blacks out the first 8 Aadhaar digits, and stamps a diagonal cross-watermark that cannot be cropped out.

XXXX •••• 9482 · FOR RENT AGREEMENT ONLY
NO WATERMARKS • NO LOGIN WALLS • NO CLOUD UPLOADS

Why IT-savvy users & exam aspirants switch to OfflineScan.

Microsoft Lens is retired, CamScanner locks clean scans behind expensive subscriptions, and free online resizers upload your private IDs to remote servers.

Capability OfflineScan (offlinescan.com) CamScanner / Adobe Scan Online Resizers (imresizer / pi7)
Privacy & Server Uploads 100% On-Device RAM (0 Uploads) Mandatory cloud sync / account login Uploads your photos & IDs to remote servers
Watermarks & Subscriptions Zero Watermarks • 100% Free Watermarks on free PDFs / ₹4,000/yr popups Covered in fake "Download" AdSense traps
Exact-KB Window (e.g. 10–20 KB) Binary-Search + Lossless 0xFFFE Padding Not supported (exports bloated MB files) Fails when small signatures fall below 10 KB
JFIF 200 / 300 / 600 DPI Patching Built-in (NSDL, UTIITSL, SSC, UPSC, Visa) Not supported Separate single-purpose pages
SafeID Front+Back + Masked Aadhaar Free 1-Tap Stitch + Mask + Cross-Watermark Locked behind paid Pro tier Not supported
1 UNIFIED MOBILE APP FOR IOS & ANDROID

Take OfflineScan in your pocket — works in Airplane Mode.

One lightweight native app (com.sifarlabs.offlinescan) with smart camera edge detection, offline OCR, SafeID KYC studio, all exam/visa compliance kits, and hardware-accelerated ExactMB video compression.

Launch Web Studio ↑ iOS & Android App Details →