useStacks: PDFviewer, Notes, and AI assistance in one focused workspace

🎉 Hey Product Hunt community! I'm Wankunda, creator of useStacks, and I'm thrilled to launch here today! The problem: I found myself drowning in browser tabs - constantly switching between PDFs, note apps, and AI tools, breaking their focus every few minutes. The solution: useStacks unifies everything in one intelligent workspace with: - Smart PDF viewer supporting multiple documents - Rich text editor for seamless note-taking - Integrated AI for instant insights - Fully customizable panels that adapt to your workflow Why I built this: After realizing that countless professionals struggle with fragmented workflows as well, I realized the tools existed; they just weren't talking to each other. I spent 6 months building the unified experience I always wished existed. What makes useStacks different: Unlike other tools that force you into rigid layouts, useStacks adapts to how YOU work. Want PDFs side-by-side with notes? AI panel on the right? It's your workspace. Try it here: https://www.use-stacks.com/ I'd love your feedback! What's your biggest workflow pain point when working with documents? Thanks for the support! 🙏 #productivity #research #AI #workflow