Renders page onto canvas, on white, in the area of GetPixelSize(PdfPage)
pixels at the canvas's origin; drawing is clipped to that area and the canvas is left as it was found.
public void Render(PdfPage page, Canvas canvas, RenderOptions options)
The page.
The canvas, for example one over a view's or a caller's bitmap; its current matrix and clip apply.
The scale and rotation.
ISO 32000-2 §8.3.2.3, §7.7.3.3 Table 31 and §14.11.2 for the page mapping (see RenderOptions).