insert a png image into a pdf file

png2pdf.py

from reportlab.pdfgen import canvas
from PyPDF2 import PdfFileWriter, PdfFileReader
import webbrowser

inputPath = "input.pdf"
outputPath = "output.pdf"
imgPath = "logo.png"
tempPath = "temp.pdf"
imgSize = 70
x = 500
y = 760

c = canvas.Canvas(tempPath)
c.drawImage(imgPath, x, y, width=imgSize, height=imgSize)
c.save()

tempFile = PdfFileReader(open(tempPath, "rb")).getPage(0)
outputFile = PdfFileWriter()
inputFile = PdfFileReader(open(inputPath, "rb"))

for i in range(inputFile.getNumPages()):
    page = inputFile.getPage(i)
    page.mergePage(tempFile)
    outputFile.addPage(page)

with open(outputPath, "wb") as out:
    outputFile.write(out)

webbrowser.open(outputPath)