ppt_to_pdf.py

import comtypes.client
import os

def init_powerpoint():
	powerpoint = comtypes.client.CreateObject("Powerpoint.Application")
	powerpoint.Visible = 1
	return powerpoint

def ppt_to_pdf(powerpoint, inputFileName, outputFileName, formatType=32):
	if outputFileName[-3:] != 'pdf':
		outputFileName = outputFileName + ".pdf"
	#print("the file's name is ", outputFileName)
	nameSplit = outputFileName.split('.')
	outputFileName = nameSplit[0] + '.' + nameSplit[-1]
	deck = powerpoint.Presentations.Open(inputFileName)
	deck.SaveAs(outputFileName, formatType)
	deck.Close()

def convert_files_in_folder(powerpoint, folder):
	files = os.listdir(folder)
	pptfiles = [f for f in files if f.endswith((".ppt", ".pptx"))]
	
	for pptfile in pptfiles:
		fullpath = os.path.join(cwd, pptfile)
		ppt_to_pdf(powerpoint, fullpath, fullpath)

if __name__ == "__main__":
	powerpoint = init_powerpoint()
	cwd = os.getcwd()
	convert_files_in_folder(powerpoint, cwd)
	powerpoint.Quit()