Ahtisham Hasan Khan's Work | ContraWork by Ahtisham Hasan Khan
Ahtisham Hasan Khan

Ahtisham Hasan Khan

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Cover image for Problem: Users need a fast,
Problem: Users need a fast, reliable, and secure way to digitize physical documents and extract text without relying on privacy-invasive cloud processing. Solution: I developed ScanIt, a native iOS utility built with SwiftUI and VisionKit. The app provides a professional scanning experience, focusing on high-speed edge detection, automatic perspective correction, and on-device OCR. Key Engineering Highlights: VisionKit Integration: Leveraged Apple’s VNDocumentCameraViewController for seamless, native document capturing with automatic shutter and real-time guidance. On-Device OCR: Implemented the Vision Framework for high-accuracy Optical Character Recognition (OCR), allowing users to search, copy, and share text directly from images without an internet connection. Advanced PDF Processing: Built custom logic for PDF generation, compression, and digital signature integration to ensure documents are office-ready. SwiftUI Performance: Optimized the UI for speed and responsiveness, ensuring large multi-page scans remain fluid and memory-efficient. Privacy-First: Designed the architecture to keep all document processing local to the device, prioritizing user security.
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Cover image for I engineered Just Invoice, a
I engineered Just Invoice, a high-performance native iOS application. I focused on a modular architecture to support deep localization, including a full Spanish version, and integrated a robust analytics dashboard for real-time financial insights.
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Cover image for Analytics
Analytics
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Cover image for TradersGPT
TradersGPT
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