Online File Converter Suite

I developed a comprehensive, web-based file manipulation platform offering over 30+ tools for image conversion, PDF management, and file compression. The system utilizes a hybrid backend architecture to process complex file formats (AVIF, HEIC, PDF) efficiently while delivering a seamless, real-time user experience.

⚙️ Hybrid Image Processing Engine

Engineered a smart format handling system that dynamically selects between GD Library for speed (JPG, PNG) and ImageMagick for complex formats (HEIC, AVIF, SVG) to optimize server performance.
Implemented advanced conversion logic capable of flattening transparencies for JPG output, preserving alpha channels for PNG, and handling animated GIFs.
Built a robust job-tracking system that generates JSON status files to monitor conversion progress in real-time, updating the UI from "Pending" to "Processing" to "Completed".

📄 Automated PDF Manipulation

Developed a PDF-to-Image pipeline that renders high-resolution pages using Ghostscript/ImageMagick and automatically packages the output into a downloadable ZIP archive.
Created a scalable architecture supporting diverse PDF operations, including splitting, merging, and compression, accessible via a unified API endpoint.
Integrated automated cleanup routines to securely remove temporary input files and intermediate artifacts immediately after processing to conserve server storage.

💻 Reactive Frontend & UX

Designed a responsive, no-refresh interface using AJAX and Tailwind CSS, featuring live progress bars that track upload and server-side processing status.
Implemented client-side validation to restrict file types before upload, reducing server load and improving user feedback loops.
Structured a modular layout system using PHP output buffering (ob_start) to dynamically inject page-specific content into a universal master template for consistent branding.

🛡️ Secure & Scalable Backend

Implemented strict MIME-type validation and error handling to prevent malicious file uploads and manage server-side exceptions gracefully.
Built a directory-based job isolation system, ensuring that concurrent user requests do not conflict by generating unique transaction IDs for every conversion task.