How to convert a webpage to image

If you are trying to capture an html page, and not just the visible portion of it, you can try a tool named url2bmp. You can download the software here. To use the software you simply need to type the url into the address bar, specify the output format, size and location to save the picture and it’s done. This tool can be used to grab page via the command line, which is very good if you want to grab something unattended and scheduled (e.g: regularly capture a page daily at specific time).

Unfortunately, this tool is build specifically for windows OS. And if your need is as simple as to capture a page that you’re currently visiting, there’s a better alternative. If you have a firefox browser you can add a plugin named screengrab to your firefox, which allowed you to capture any page that you’re visiting. You can grab the whole webpage, the visible portion of it, or specific region of the webpage. Read more on its own page here.