Paperless-NG is a powerful software designed to act as a digital archive/index for all your paper documents.
When you feed Paperless-NG a document. it will perform OCR (Optical Character Recognition) over it, turning images into searchable and selectable text.
This is just scraping the surface of what Paperless is capable of. You should definitely check out this software if you need a central place to aggregate your documents.
For the best experience with Paperless-NG, you should use a Raspberry Pi 4 or newer with 4GB of memory or more. Additionally, it would help if you also were using a 64-bit operating system so that it can make the most of your device’s memory.