ES System K manufactures complex commercial refrigeration for retail clients across the region. Every quote was built by hand: copying product codes and EUR prices from spreadsheets into Word, adding accessories, calculating discounts on a calculator, reformatting. A multi-position quote took half a working day and two versions rarely agreed on price or layout.

We built a single-page application that replaces the Word and Excel process entirely. Search the catalog, click products in, set quantities and per-position discounts, export a branded PDF. It runs completely in the browser with no server, no login, no installation. One live catalog models real codes, temperature classes, dimensions and EUR prices as a single source of truth.

The Word file is retired. A typical multi-position quote now takes 15 minutes instead of half a working day. Pricing runs from one source with zero version drift, accessory mismatches dropped to zero through family-specific automatic logic, and every offer ships as the same consistent branded PDF, professional on 100 percent of documents.

A fully client-side single-page app in HTML, CSS and JavaScript with a React PDF preview engine and browser-based A4 render. A live EUR catalog modeled from the official pricing list, live catalog search, per-position and document-level discounts, automatic family-specific accessory logic, and one-click branded PDF export deployable as a static file.