how to save opened page as pdf in Selenium (Python)

Question

Have tried all the solutions I could find on the Internet to be able to print a page that is open in Selenium in Python. However, while the print pop-up shows up, after a second

Answer 1

You can use the following code to print PDFs in A5 size with background css enabled:

import os
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
import json
import time

chrome_options = webdriver.ChromeOptions()

settings = {
    "recentDestinations": [{
        "id": "Save as PDF",
        "origin": "local",
        "account": ""
    }],
    "selectedDestinationId": "Save as PDF",
    "version": 2,
    "isHeaderFooterEnabled": False,
    "mediaSize": {
        "height_microns": 210000,
        "name": "ISO_A5",
        "width_microns": 148000,
        "custom_display_name": "A5"
    },
    "customMargins": {},
    "marginsType": 2,
    "scaling": 175,
    "scalingType": 3,
    "scalingTypePdf": 3,
    "isCssBackgroundEnabled": True
}

mobile_emulation = { "deviceName": "Nexus 5" }
chrome_options.add_experimental_option("mobileEmulation", mobile_emulation)
chrome_options.add_argument('--enable-print-browser')
#chrome_options.add_argument('--headless')

prefs = {
    'printing.print_preview_sticky_settings.appState': json.dumps(settings),
    'savefile.default_directory': ''
}
chrome_options.add_argument('--kiosk-printing')
chrome_options.add_experimental_option('prefs', prefs)

for dirpath, dirnames, filenames in os.walk(''):
    for fileName in filenames:
        print(fileName)
        driver = webdriver.Chrome("./chromedriver", options=chrome_options)
        driver.get(f'file://{os.path.join(dirpath, fileName)}')
        time.sleep(7)
        driver.execute_script('window.print();')
        driver.close()