CSV to PDF quote generator — self-initiated demonstration, not client work. The Python tool validates quantities, prices and output names before generating separate PDF quotes. Three fictional sample totals were checked: KRW 94,000 / 216,000 / 150,000. Boundary checks include malformed input, filename traversal, conflicting customer data, a 500-row limit, and protecting existing output folders. Tested on Mac with Python; Windows and client-specific integrations are not yet verified. A small commissioned version can cover one CSV schema, one PDF layout and one target environment, with source, checks and a usage guide.