An interactive proposal is a sales document delivered as a responsive web page rather than a PDF. Recipients can toggle pricing options, adjust quantities, watch embedded video walkthroughs, and accept-and-sign inline — all without leaving the page.
Compared to PDF proposals, interactive proposals deliver higher accept rates (sales teams typically report 30-60% lifts), shorter cycle times (no back-and-forth to add a line item), and richer analytics (per-section dwell time, not just 'opened').
They typically replace dedicated proposal tools (PandaDoc, Qwilr, Proposify) and double as the order form when the accept block triggers Stripe checkout.