I am the authorized agent for a door manufacturing company and I require a simple Windows desktop application to streamline the process of preparing quotations, issuing invoices, and managing the sales cycle from showroom to installation. Workflow: A client visits the showroom and initially selects the products. I take measurements at the project site. I send the client a quotation. Once the client approves and pays a deposit, I prepare a detailed contract to ensure there are no mistakes and that all specifications are documented. I send the specifications file to the parent company in China in the required format. After the doors arrive, they are installed either fully or in stages. Required Features: Product Database: Ability to add, edit, and delete products (wooden doors, aluminum doors, accessories, etc.) while saving details such as model, dimensions, color, material, and price. Customer Management: Interface to enter and store customer details (name, phone number, address). Quotations & Invoices: Simple interface to select products, set quantities and sizes per customer, and calculate totals automatically. Automatic Document Generation: Customer Contract (PDF): A professional, detailed document outlining all chosen specifications (dimensions, color, model, accessories, etc.) to ensure customer confidence and avoid errors. Parent Company File (Excel/CSV): Technical data file containing all necessary specifications for manufacturing, to be sent to the parent company in China. Reports (suggested): Installation Status Report: Products installed vs. pending installation. Inventory Report: Products in stock pending installation. Sales Report: Summary of sales by product or by customer. Technical Requirements: Must run on Windows OS. User-friendly and intuitive interface. Bilingual support (Arabic & English) with toggle option. The software should accept and support translation from Arabic/Chinese to English and vice versa. Additional Notes: Development timeline: Maximum of 2 weeks. Unlimited revisions until final approval. Design customization included: Full control over UI design (layout, colors, and ability to add images or logos). The developer must have a good command of English. Attached is the file send to the main company in China and the file we send to our client in KSA all selection in the items should be drop down menu and can accept editing manually Catalouge is here i these links: https://drive.google.com/file/d/1t7wDvsD0wmH7HXh5l_iemgUw4C_9FU_z/view?usp=drive_link https://drive.google.com/file/d/1_s-vGX_cNzAOaITIbT6DW3asx7pB7ypb/view?usp=drive_link https://drive.google.com/file/d/12fsaINdoWGxqrzYMEX9HH2XqvFiwok1f/view?usp=drive_link https://drive.google.com/file/d/1Ha16M_AD814rAkoAOOomWJc3Ajbh46ap/view?usp=drive_link https://drive.google.com/file/d/1jazNJ7t7RNxud-xCha-QlXidzRlnwGmP/view?usp=drive_link