Python - Selenium - Print Webpage

Question

How do I print a webpage using selenium please.

import time
from selenium import webdriver
# Initialise the webdriver
chromeOps=webdriver.ChromeOptions()
chromeOps._binary_location = "C:\\Program Files\\Google\\Chrome\\Application\\chrome.exe"
chromeOps._arguments = ["--enable-internal-flash"]
browser = webdriver.Chrome("C:\\Program Files\\Google\\Chrome\\Application\\chromedriver.exe", port=4445, chrome_options=chromeOps)
time.sleep(3)
# Login to Webpage
browser.get('www.webpage.com')

Note: I am using the, at present, current version of Google Chrome: Version 32.0.1700.107 m

• jfs: Do you want to get html source: browser.page_source? Or do you want a dead tree edition: browser.execute_script('window.print()')?

Answer 1

While it's not directly printing the webpage, it is easy to take a screenshot of the entire current page:

browser.save_screenshot("screenshot.png")

Then the image can be printed using any image printing library. I haven't personally used any such library so I can't necessarily vouch for it, but a quick search turned up win32print which looks promising.

Answer 2

The key "trick" is that we can execute JavaScript in the selenium browser window using the "execute_script" method of the selenium webdriver, and if you execute the JavaScript command "window.print();" it will activate the browsers print function.

Now, getting it to work elegantly requires setting a few preferences to print silently, remove print progress reporting, etc. Here is a small but functional example that loads up and prints whatever website you put in the last line (where 'http://www.cnn.com/' is now):

import time
from selenium import webdriver
import os
class printing_browser(object):
 def __init__(self):
 self.profile = webdriver.FirefoxProfile()
 self.profile.set_preference("services.sync.prefs.sync.browser.download.manager.showWhenStarting", False)
 self.profile.set_preference("pdfjs.disabled", True)
 self.profile.set_preference("print.always_print_silent", True)
 self.profile.set_preference("print.show_print_progress", False)
 self.profile.set_preference("browser.download.show_plugins_in_list",False)
 self.driver = webdriver.Firefox(self.profile)
 time.sleep(5)
 def get_page_and_print(self, page):
 self.driver.get(page)
 time.sleep(5)
 self.driver.execute_script("window.print();")
if __name__ == "__main__":
 browser_that_prints = printing_browser()
 browser_that_prints.get_page_and_print('http://www.cnn.com/')

The key command you were probably missing was "self.driver.execute_script("window.print();")" but one needs some of that setup in init to make it run smooth so I thought I'd give a fuller example. I think the trick alone is in a comment above so some credit should go there too.

• Ezekiel Kruglick: Well, this is a few years old now, can you say something about what you tried and what happened? Was there an error generated?

Answer 3

With Selenium >= 4:

import base64
from selenium.webdriver.common.print_page_options import PrintOptions
print_options = PrintOptions()
# paper sizes in centimeters
print_options.page_width = page_width
print_options.page_height = page_height
pdf = driver.print_page(print_options=print_options)
pdf_bytes = base64.b64decode(pdf)
with open(filepath, "wb") as fh:
 fh.write(pdf_bytes)

See PR for Python bindings