The document is a bill format template that includes sections for billing information, project description, itemized charges, and payment details. It outlines the bill from a company to a client, listing quantities, unit prices, GST, and total amounts. Bill Book Format PDF Free Download. Access online templates for shop, school, and company invoice designs in PDF formats. Explore creative bill book designs. Find professionally designed Bill Books templates & designs created by Vistaprint. Customize your Bill Books with dozens of themes, colors, and styles to make an impression. Absolutely guaranteed! A bill book template helps businesses record and issue professional invoices for products or services. It includes key billing details like customer name, item description, quantity, rate, taxes, and total amount — making it easy to maintain clear transaction records and stay GST-compliant.