Set of Dart/Flutter packages — `pdf` for core PDF generation, `printing` for device print/preview integration — that let Flutter apps generate and print PDF files natively on both iOS and Android from the same Dart codebase. The `pdf` package builds documents with a widget-like API modeled after Flutter's own layout system (rows, columns, padding, flexible sizing), so Flutter developers reuse layout intuition they already have. `printing` then hands the result to the OS's native print/share dialog.