paint method
Paints appearance inside rect, in user space coordinates.
Implementation
void paint(PdfAppearanceStream appearance, PdfBox rect) {
final mirror =
_MirroredFormXObject.of(page.pdfDocument, appearance.id);
editor.drawOverlay((canvas) {
canvas.drawFormXObject(
mirror,
matrix: appearance.placementMatrix(rect.normalized()),
);
});
_isolateXObjectResources();
}