TargetRasterLoader decodes printtarg TIFFs via ImageIO and re-tags
into DeviceGray/DeviceRGB/DeviceCMYK around the decoder's own
dataProvider — no resample, no bit-depth change (D10). Skip-only
alpha padding (noneSkipLast/First, which ImageIO emits for opaque
RGB TIFFs) is accepted; real coverage alpha, indexed, float and
non-1/3/4-component layouts are rejected as unsupportedLayout.
DPI metadata drives pointSize (px/dpi*72) with a 72 dpi fallback +
warn; manifestDrift reports >0.5 mm disagreement with the printtarg
manifest (D9).
TargetPageCanvasView is the headless flipped canvas NSPrintOperation
paginates: rectForPage stacks pages top-down, destinationRect anchors
1:1 at the page's top-left snapped to 0.001 pt, and draw() forces
interpolation/antialias/font-smoothing off per page with a drawProbe
seam for tests.
PDF harness (NativeSpoolPDFTests, skippable via ICCERY_SKIP_PRINT_PDF=1)
ran on this host: run() -> true, 2 pages at A4 media box, and the
fixture's 72 pt patch verified 1:1 at the painted top-left (printer
unprintable-margin offset tolerated per R10).
gronod