The Browser Height field under Advanced Web Page Options sets the size of the Browser used by Blitapp. Blitapp uses actual web browsers to capture sites. The Browser Width and Browser Height fields change the size of the Bowser window.
f you choose a Full Page screenshot, the image size will be the full height of the page. If you select a Screen size, the image height will be the same as the browser height. We recommend setting the Browser height to a value used commonly on computers, around 1,200 pixels. The maximum browser height is 20,000px.