Selenium screenshot is blank at the bottom? How to solve the problem of blank space at the bottom of the web screenshot?

Selenium screenshot is blank at the bottom? Perfectly solve the problem of blank space in web screenshots!

When using Selenium and chromedriver to capture web pictures, the problem of blank space at the bottom often bothers us. For example, the following code snippet can cause this problem:

 <code>width = driver.execute_script("return document.documentElement.scrollWidth") height = driver.execute_script("return document.documentElement.scrollHeight") driver.set_window_size(width, height) driver.save_screenshot(pic_name)</code>

This code gets the scroll width and height of the web page, sets the browser window size and saves the screenshot. However, there is a lot of blank space at the bottom of the actual screenshot. This is because the browser only renders the content in the window. If the content of the page exceeds the height of the window, direct screenshot will cause the part outside the window to be unrendered, resulting in a blank space at the bottom.

Solution: Before taking a screenshot, you need to scroll the page and load all the content into the browser rendering area. We can do this by simulating scrolling operations. Adding JavaScript to the above code to scroll to the bottom of the page will solve the problem.

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