This is a submission for the GitHub Copilot CLI Challenge
What I Built
I built pdfwork.space
— a fully client-side PDF editing and processing toolkit that runs entirely inside the browser, locally.
- No uploads.
- No backend document processing, (You can check devtools, network tab)
- No sensitive file leaving your device.
Most online PDF tools upload your sensitive documents to their servers. Even with deletion promises, your files are processed elsewhere.
pdfwork.space removes that layer completely.
Core Features :
- Edit PDF visually, literally do anything
- Convert PDF to any format
- Convert any format to PDF
- Merge multiple PDFs
- Split PDFs by page range
- Compress large PDFs
- Page-level editing & manipulation
- Drag-and-drop workflow
- Offline-first experience
- SEO and performance optimized
- Bring your API and do anything with PDF(Chat, Q&A, Summarize, etc)
Advanced Feature: Worker-Powered Batch Tools
One of the most important engineering decisions was implementing a Web Worker–based batch processing system.
This allows:
- Running multiple PDF operations in parallel
- Heavy processing without freezing the UI
- Smooth experience even with large files
- Scalable architecture for future expansion
Demo
Checkout live : Pdf WorkSpace
My Experience with GitHub Copilot CLI
GitHub Copilot CLI had a direct architectural impact on this project.
It wasn’t just autocomplete — it helped accelerate thinking and experimentation.
Copilot CLI assisted with:
- Helping me to take architecture decision faster and with real-scenario examples
- Designing and structuring the Web Worker batch processing architecture
- Generating optimized scaffolding for complex client-side file handling
- Refactoring performance-critical sections faster
- Improving SEO and Lighthouse score after applying a focused prompt
- Iterating on improvements directly from the terminal without breaking flow
One of my favorite moments was improving performance and SEO significantly after applying a simple, well-structured Copilot CLI prompt. It saved time I would otherwise spend manually researching and testing optimizations.
Copilot CLI felt less like a helper and more like a productivity multiplier — especially when working on complex browser APIs and performance tuning.
A Small Tip from My Side (Developer to Developer)
Use Copilot CLI beyond generation — use it for validation and optimization.
Feed it:
- Lighthouse reports
- Performance bottlenecks
- Large functions for refactor suggestions
- Architecture snippets for improvement
Top comments (1)
Love the concept, client-side PDF toolkit is much needed thing.