If a webpage or a file is more than one screen and you want to capture the whole thing as one picture, you can get that easily with the Snagit Capture software with the following steps:
Step 1: Open the page you want to capture and click the "Capture" button;
Step 2: You will see the arrow in 3 directions, click the down arrow if the page is very long. This will allow you to capture the hidden page portion;
Step 3: After a couple of seconds, you will see the page scrolling and the whole page will appear after.
Please visit Snagit official website www.techsmith.com for details.