let page = doc.addPage(PDF.PageSizes.Letter)

let {width, height} = page.getSize()

let purple = PDF.rgb(0.4, 0.2, 0.6)

let white = PDF.rgb(1, 1, 1)

let head_size = width/4

let eye_size = width/32

let mouth_size = width/7

let cx = width/2

let cy = height/2 + height/8

page.drawCircle({

x: cx,

y: cy,

size: head_size,

color: purple

})

page.drawCircle({

x: cx,

y: cy - mouth_size/8,

size: mouth_size,

color: white

})

page.drawEllipse({

x: cx,

y: cy + mouth_size/8,

xScale: mouth_size*1.25,

yScale: mouth_size/1.25,

color: purple

})

let draw_eye = (offset) => {

page.drawEllipse({

x: cx + eye_size*3*offset,

y: cy + eye_size*2.5,

xScale: eye_size,

yScale: eye_size*1.5,

color: white

})

}

draw_eye(1)

draw_eye(-1)