Translation: "Send me a PDF I'll skim, forward to 3 people, and forget about."
You spend 2 hours on it. Beautiful formatting. Perfect language. You hit send and... nothing. It sits in their downloads folder next to 4 other proposals that all look the same.
Here's the problem: proposals are dead on arrival. Static. Forgettable. Impossible to track.
Here's the fix: send a living proposal instead.
One link. Updates in real time. You see exactly who opens it, how long they spend, which sections they care about. When they share it with their boss, you know.