from reportlab.pdfgen import canvas
from reportlab.lib.units import inch

font = "Helvetica"
font_size = 26
text = "Hello, world"
x = 5.0 * inch
y = 8.0 * inch
destination_file = "/tmp/first.pdf"

my_canvas = canvas.Canvas(destination_file)
my_canvas.setFont(font, font_size)
my_canvas.drawRightString(x, y, text)
my_canvas.save()