[LeSaucy]

It’s not free/oss, and it’s on the Apple ecosystem, but DEVONTHINK does a fantastic job of this, and supports storing all of your documents in a webdav store which you can host yourself. It uses Aabbyy fine reader for ocr which I have found to provide better results than tensorflow based ocr.

[rufugee]

I've been using DEVONThink for just this for a few years, and it's very good at it. However, it's macOS only and has far more features than I need (simple searching, tagging, and organization). I tried paperless a year ago and the search and rendering was far too slow, and many docs just gave obscure errors. Perhaps it's time to give it another shot. I'd love to have something on Linux that could handle my large repository of documents.