Originally introduced superscreenshot this online screenshot site. However, it is now found that the speed is getting slower and slower and there are always various strange situations, but can only find an online screenshot site to replace it.
webthumb is much stronger than superscreenshot. The first thumbnail generated is more convenient than the former. There is also a reference setting that will capture the approximate location of the logo and generate a thumbnail, which is very convenient. Then there are three thumbnails for you to choose from.
Then it also supports flash9 and pdf interception, of course, also provides an api interface for you to use on your own website, but the free version is limited in number of times, about one hundred times, and it is not very stingy