I am trying to implement printing html/css contents as PDF with Selenium, chromedriver and python.
I could printing with a below code, but I cannot change printing setting. I would like to print in Letter size and no header/footer. Official information chromedriver or Selenium doesn't tell me a lot, so I'm in trouble. Does anyone know that how printing setting can be changed or it can never be done.
import json
import os
from selenium import webdriver
# setting html path
htmlPath = os.getcwd() + "\\sample.html"
addr = "file:///" + htmlPath
# setting Chrome Driver
chromeOpt = webdriver.ChromeOptions()
appState = {
"recentDestinations": [
{
"id": "Save as PDF",
"origin": "local",
"account": ""
}
],
"selectedDestinationId": "Save as PDF",
"version": 2
}
prefs = {
'printing.print_preview_sticky_settings.appState': json.dumps(appState)}
chromeOpt.add_experimental_option('prefs', prefs)
chromeOpt.add_argument('--kiosk-printing')
driver = webdriver.Chrome('.\\bin\\chromedriver', options=chromeOpt)
# HTML open and print
driver.get(addr)
driver.execute_script('return window.print()')
Add --headless and try it like this:
pdf = driver.execute_cdp_cmd("Page.printToPDF", {
"printBackground": True
})
import base64
with open("file.pdf", "wb") as f:
f.write(base64.b64decode(pdf['data']))
Here are some options you can fiddle with
Related
I'm trying to save a web page as a PDF but all I get is a file name selection window. How to automatically enter a file name and save it?
settings = {
"appState": {
"recentDestinations": [{
"id": "Save as PDF",
"origin": "local",
"account": "",
"margin": 0,
'size': 'auto'
}],
"selectedDestinationId": "Save as PDF",
"version": 2,
"margin": 0,
'size': 'auto'
}
}
#There is probably a lot of excess here, I tried to use everything that can help
prefs = {'printing.print_preview_sticky_settings': json.dumps(settings),
'profile.default_content_settings.popups': 0,
'download.name': 'test.pdf', #It doesn't work(
'download.default_directory': download_path,
'savefile.default_directory': download_path,
'download.prompt_for_download': False,
"download.directory_upgrade": True,
"safebrowsing_for_trusted_sources_enabled": False,
"safebrowsing.enabled": True,
"download.extensions_to_open": "",
"plugins.always_open_pdf_externally": True,
}
options.add_experimental_option('prefs', prefs)
options.add_argument('--kiosk-printing')
driver = webdriver.Chrome(service=ser, options=options)
driver.maximize_window()
driver.get('url')
driver.execute_script('window.print();')
time.sleep(20)
I couldn't find a solution on the internet, I tried every possible option but it doesn't work for me.
There is no built-in function in Selenium that allows you to save a web page as a PDF. However, you can use a third-party tool, such as wkhtmltopdf, to accomplish this.
Install wkhtmltopdf
Download the wkhtmltopdf binaries from the official website and install them on your system.
Add wkhtmltopdf to your PATH
Add the wkhtmltopdf binary to your system PATH so that Selenium can find it.
Use the save_as_pdf function
The save_as_pdf function takes a Selenium webdriver instance and a filename as arguments and saves the current page as a PDF.
def save_as_pdf(driver, filename): driver.execute_script('window.print();') sleep(5) with open(filename, 'wb') as file: file.write(driver.page_source.encode('utf-8'))
I was able to solve this problem using the pyautogui library. Although I think that this is not the best solution
import pyautogui as pag
driver.execute_script('window.print();')
time.sleep(20)
pag.typewrite('test.pdf')
time.sleep(1)
pag.press("enter")
time.sleep(20)
I have encountered a problem with python selenium while I was trying to print (save as pdf) a bunch of pages from an essay with a python program that I wrote and the selenium plugin for it. The problem is that the content of some pages does not fit on one A4 page, and the automatic "page-breaking" cuts the pages in a very silly way. As you can see in the attached image of the pdf, the bottom row of the first page is cut in half (therefore cannot be read) and the top 3-4 row of the next page's content is also missing (due to the margin on the top of the page, i guess?). I would like to implement a solution in my code, so the "page-breaking" is done correctly (every row shows).
The pdf is not in English, but I think it is irrelevant regarding the problem.
The parts regarding the settings of the print in my code:
chrome_options = webdriver.ChromeOptions()
settings = {
"recentDestinations": [{
"id": "Save as PDF",
"origin": "local",
"account": "",
}],
"selectedDestinationId": "Save as PDF",
"version": 2,
"isHeaderFooterEnabled": False
}
prefs = {'printing.print_preview_sticky_settings.appState': json.dumps(settings)}
chrome_options.add_experimental_option('prefs', prefs)
chrome_options.add_argument('--kiosk-printing')
CHROMEDRIVER_PATH = '/usr/local/bin/chromedriver'
browser = webdriver.Chrome(chrome_options=chrome_options)
And i call the print like this:
browser.execute_script('window.print();')
A possible solution would be a larger page size, but I need A4 size because I would like to print it at home.
an occurrence of the bug here
I have a working script using Python, Selenium, and the Chrome webdriver to save webpages as PDFs. However, I need to save them on legal sized documents (216 x 356 mm), while my current script only saves files in letter size (216 x 279 mm).
Here's the code that I currently have:
# Attach printing options to webdriver
app_state = {
"recentDestinations": [
{
"id": "Save as PDF",
"origin": "local",
"account": ""
}
],
"selectedDestinationId": "Save as PDF",
"isCssBackgroundEnabled": True,
"isHeaderFooterEnabled": False,
"isLandscapeEnabled": True,
"version": 2
}
prefs = {
'printing.print_preview_sticky_settings.appState': json.dumps(app_state)
}
chrome_options = webdriver.ChromeOptions()
chrome_options.add_experimental_option('prefs', prefs)
chrome_options.add_argument('--kiosk-printing')
driver = webdriver.Chrome(options=chrome_options)
Is there a way to save documents using legal size (or change the paper size in any way)?
I've been searching for other prefs and options to change the paper setting and/or dimensions, but haven't had any luck at all.
Thanks!
if you add
"mediaSize": {"height_microns": 355600, "width_microns": 215900}
in the appState dictionary, you should get the paper size set to legal.
If you want to change to any other size (that is in the list) you can google the dimensions and convert to microns, or inspect the dropdown that allows you to choose the paper-size, and then search for your desired size in the options, and copy/paste the values.
For this solution to work, the values have to match exactly the ones in the dropdown, otherwise it won't select and default to Letter.
Does anyone know how to disable the "headers and footers" option while printing in selenium? It's by default set to true, Anyone know how to fix this? Thank you!!!
import json
import os
from selenium import webdriver
# setting html path
htmlPath = os.getcwd() + "\\sample.html"
addr = "file:///" + htmlPath
# setting Chrome Driver
chromeOpt = webdriver.ChromeOptions()
appState = {
"recentDestinations": [
{
"id": "Save as PDF",
"origin": "local",
"account": ""
}
],
"selectedDestinationId": "Save as PDF",
"version": 2
}
prefs = {
'printing.print_preview_sticky_settings.appState': json.dumps(appState)}
chromeOpt.add_experimental_option('prefs', prefs)
chromeOpt.add_argument('--kiosk-printing')
driver = webdriver.Chrome('.\\bin\\chromedriver', options=chromeOpt)
# HTML open and print
driver.get(addr)
driver.execute_script('return window.print()')```
Just add "isHeaderFooterEnabled": False to your appstate this below change.
appState = {
"recentDestinations": [
{
"id": "Save as PDF",
"origin": "local",
"account": ""
}
],
"selectedDestinationId": "Save as PDF",
"version": 2,
"isHeaderFooterEnabled": False
}
Screenshot : commented chromeOpt.add_argument('--kiosk-printing') line just to show the de-selected option in screenshot.
You can find the details about the chromium options on the below page
https://github.com/chromium/chromium/blob/eadef3f685cd9e96e94fcb9645b6838b6d0907a8/chrome/browser/resources/print_preview/data/model.js
This can be done using Selenium by following pyppeteer examples.
You will need to be able to send commands to chromium and call Page.printToPDF Devtools API as shown in the following snip:
result = send_cmd(driver, "Page.printToPDF", params={
'landscape': False
,'margin':{'top':'1cm', 'right':'1cm', 'bottom':'1cm', 'left':'1cm'}
,'format': 'A4'
,'displayHeaderFooter': False
,'scale': 1
})
with open(out_path_full, 'wb') as file:
file.write(base64.b64decode(result['data']))
I've included a full example in my GitHub Repo with more settings that are available.
geckodriver Version
0.16.1
Firefox Version
53.0.2 (32-bit)
What happens:
When I try to automate login on an unsafe page, the firefox opens a new tab "https://support.mozilla.org/1/firefox/53.0.2/WINNT/pt-PT/insecure-password".
How can I disable this? I think that property "security.insecure_field_warning.contextual.enabled" is related to this behavior but i don't know how i could disable it by python code.
I try the following code but without success:
[...]
firefox_driver = path_drivers + "geckodriver.exe"
profile = webdriver.FirefoxProfile()
profile.set_preference("security.insecure_field_warning.contextual.enabled", False)
return webdriver.Firefox(executable_path=firefox_driver, firefox_profile=profile)
The preference doesn't change, remains with True value on about:config.
Any idea?
Best regards,
Ruben Santos
I was able to find the solution.
From the version 0.11 of geckodriver is possible to change firefox preferences by the moz:firefoxOptions capability instead of change profile settings.
{
"capabilities": {
"alwaysMatch": {
"moz:firefoxOptions": {
"binary": "/usr/local/firefox/bin/firefox",
"args": ["--no-remote"],
"prefs": {
"dom.ipc.processCount": 8
},
"log": {
"level": "trace"
}
}
}
}
}
In this way i was able to change the "security.insecure_field_warning.contextual.enabled" with this solution:
[...]
firefox_driver = path_drivers + "geckodriver.exe"
firefox_capabilities = DesiredCapabilities.FIREFOX.copy()
#To disable insecure-password tab by support firefox
firefox_options = { "moz:firefoxOptions" : { "prefs" : { "security.insecure_field_warning.contextual.enabled" : False } } }
firefox_capabilities["alwaysMatch"] = firefox_options
return webdriver.Firefox(executable_path=firefox_driver, capabilities=firefox_capabilities)
I found simpler solution:
from selenium.webdriver import Firefox, FirefoxProfile
profile = FirefoxProfile()
profile.set_preference('security.insecure_field_warning.contextual.enabled', False)
profile.set_preference('security.insecure_password.ui.enabled', False)
driver = Firefox(firefox_profile=profile)