What is Proposal Kit used for?

The short answer is Proposal Kit is used to write business proposals and contracts. The products on the Proposal Kit website are split between proposals and legal agreements, each with document customization software. A bundle that covers both is called the Proposal Kit Professional. The software features include assembling custom documents from a library of thousands of topic chapters, custom branding (colors, fonts, graphics, and logos), and a customizable line-item database system used for quotes, estimates, budgets, schedules, and more.