For documentation, see manual for the related R6 function e.g. `PDFRect`
ptag
An object of class list
of length 7.
PDFText PDFRect PDFLine PDFPolyline PDFPolygon PDFCircle PDFCustom PDFClipRect PDFClipPolygon
if (FALSE) { ptag$rect(x = 0, y = 0, width = 100, height = 100) ptag$circle(x = 100, y = 100, r = 10, fill = 'black') }