Safe Windows driver settings, printable geometry and RGB/GDI transport. Other platforms return Unsupported. Callers compose page pixels and vector strokes and perform ICC conversion; the transport owns no app or document state. Manual copies use a validated single-copy DEVMODE. Application-managed and unmanaged RGB use ICM_DONE_OUTSIDEDC, reapplied after StartPage; driver-managed RGB uses ICM_OFF. Driver automatic color correction still belongs to its settings.

The Win32 module is isolated; no unsafe code is required in consumers. This package is a separate Cargo workspace, so tests do not enable the root package's PDFium feature. Run cargo test --manifest-path crates/gdi/Cargo.toml. Ignored driver tests require Microsoft Print to PDF and must be run only in a task-owned Windows test environment.

Derived from @Moiztermind's MIT OR Apache-2.0 PhotoCraft proposal https://github.com/storytold/photocraft/pull/3013, with qualification fixes by @skylartaylor. This package retains its source licenses; the root winprint package remains BSD-3-Clause.