Rag Document Viewer

👋Hello, Product Hunt community, I hope you all are fine and feeling good😀, I am Nicola co-founder with Nicolò at Preprocess (https://preprocess.co) and Pigro (https://pigro.ai). Thanks to our ventures, we gained experience in the field and decided to create an open-source RAG document Viewer. Thanks to our solution, you can render the original file inside your product, whatever PDF, DOCX, PPTX, XLSX it is. Moreover, the solution highlights exactly the passages your LLM retrieved, no more guessing where the answer came from. If users can’t see the exact evidence behind an LLM answer, they won’t trust it. With RAG document viewer, you can now provide the authentic visual context. Our viewer is ideal for RAG developers, and it is open source. Key Features 🛠️ 1) Multi-Format: Renders PDFs and Office docs natively with a headless conversion pipeline under the hood. Your users always see the original page layout. 2) Precise Highlights: Pass chunks from your RAG pipeline and the viewer will auto‑scroll and spotlight the evidence. The highlight logic is completely in your hands, from chunks to pages, with no fragile text search. 3) Embed in seconds: Generate a self‑contained HTML bundle to be embedded into an iframe. Works in React, Vue, Django, Flask, FastAPI… anywhere a browser lives. 4) Lightweight & Secure: No external servers. The viewer runs fully in the browser and serves files from your backend with your access permission logic. Less boilerplate, more product: Add trustworthy document evidence to your RAG app in a few lines of code. We're committed to continuous improvement and would love to hear your thoughts on this product and Preprocess. Please share your experiences and suggestions to help us serve you better.