PDFContentStream.RestoreVisualCoordinateSystem Method
RestoreVisualCoordinateSystem()
Restores the coordinate system as it has been setup initially by PDFCanvas class.
Remarks
The visual coordinate system is located in the top left corner of the page, the X axis grows from left to right, the Y axis grow from top to bottom.
This method must be called only if ResetPDFCoordinateSystem or Clear methods have been called before.