Duplicate
I want to display a thumbnail image of an HTML page. How can I do this?
Provide more information like if you are using PHP, ASP.net or a windows Application. If you are using PHP for example you can profit of the variety of Open Source extensions that can do the work for you.
See how to Generate a Thumbnail of Any Webpage using PHP.
Also have a look at WebThumb.
I found several web sites that offer a service that will do this for you using http://www.google.com/search?&q=web+page+thumbnail. For .NET Dll you could try http://www.websitesscreenshot.com/.
来源:https://stackoverflow.com/questions/673023/convert-html-to-an-image