Following features could be added.
Scan button next to attach file, to directly scan and upload document. Current process is cumbersome. Scan -> Save -> Attach -> Browse -> Upload.
Optimizing server space, using Auto - Compression. Option at time of upload to compress files, based on importance.
OCR on upload, to auto fill certain fields, based on predetermined format, or for smarter search. Could be used with, Vendor/Customer registration forms, contact cards, or other standard documents regularly scanned and uploaded.
Drag & Drop to attach files
This can save a lot of clerical time, make system intelligent, and save money with better data management.
Additional changes / comments welcome.