An independent web application hosting a collection of approximately 25 PDF utilities designed for fast, frictionless document manipulation directly in the browser.
Built with a hybrid processing architecture: lightweight document tasks are handled with Node.js streams, while compute-heavy conversions and page operations are dispatched to Python workers with AWS S3 storage.
PDFDex was built to provide an ad-free, intuitive web destination for everyday PDF tasks. Rather than relying on heavyweight desktop software or ad-bloated converters, users can drag and drop documents to merge, split, rotate, convert, or compress files with clean visual previews.
The platform encompasses approximately 25 distinct utilities categorized across document organization, conversion, optimization, and security.
Different PDF operations have widely varying CPU and memory profiles. A hybrid backend architecture ensures that simple operations remain near-instantaneous while resource-intensive jobs run without affecting platform responsiveness.
I architected the platform end-to-end, writing the Next.js frontend, configuring Docker containers for the processing backends, and tuning AWS S3 pre-signed upload URLs for reliable large-file transfers.
~25 Tools
AWS S3
Node + Python
Automated Lifecycle
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