Hello, Dev Community!
I’ve been working on Crow Docs, a "Swiss Army Knife" for PDF manipulation that runs entirely in your browser. Today, I’m excited to share some major updates and a few technical challenges I've solved.
What is Crow Docs?
If you missed the previous posts, Crow Docs is an open-source alternative to tools like SmallPDF or ILovePDF. The main difference? Zero uploads. Everything happens on the client-side using the user's hardware. Your sensitive documents never leave your machine.
🆕 What’s New?
We’ve just integrated three high-demand features:
🎧 PDF to Audio (TTS): Using the Web Speech API to turn static documents into accessible "podcasts". Perfect for studying on the go.
📄 Resume Builder: A streamlined, schema-based generator to create clean, professional CVs without formatting headaches.
🌍 PDF Translator: Breaking language barriers by integrating translation logic directly into the document workflow.
🛠️ The Tech Stack & Challenges
Building these features without a backend for processing is a fun challenge. We are leveraging:
pdf-lib & pdf.js for core manipulation.
Web Workers to ensure the UI doesn't freeze during heavy processing.
Local Storage/IndexedDB for state management without tracking.
The biggest hurdle? Memory management. Processing a 100MB PDF strictly in RAM requires some creative "chunking" to keep the browser happy.
Why go Client-Side?
In an era of data breaches, privacy isn't just a feature; it's a requirement. By keeping the logic in the browser, we eliminate server costs (yay, free hosting!) and, more importantly, we guarantee user privacy by design.
Check it out here: https://crowdocs.com.br/
I’d love to hear your thoughts on the performance of these new tools. If you’re a fellow dev, what’s the most annoying thing you’ve faced when working with PDF libraries in JS?
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