We all know how to take screenshot of visible things on our screen. But there are times that we need to capture a full scrolling webpage, including contents beyond the screen. Actually, this is very easy. You can use an online application called Webpage Screenshot Capture to do that.
Go to the webpage you want to screenshot and copy its link.
Go to the site of Webpage Screenshot Capture in your browser. You will notice a URL box on the page.
Paste the link into the URL box and click Take Screenshot.
After a few seconds, a preview of the scrolling webpage screenshot will be displayed. And you can choose its format (PNG, JPG, BMP) on the right side. Lastly, click Save image as a file to keep it on your PC.
It's very easy, and you don't need to install any software on your computer. This application is applicable on both Windows and Mac.