Google repackaged some of the code from the
Feedback extension as a
screen capturing Chrome extension. Google's tool lets you save the content of a tab as a PNG image, annotate the screenshot and highlight interesting parts of the image. The extension is able to capture the visible content of a tab, a region or the whole page, but it needs to scroll the page to capture the content that's not visible.
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Google's extension has a better interface than
Webpage Screenshot, but it has less annotation options than
Awesome Screenshot. Another advantage of Google's extension is that it scrolls the page horizontally if it's necessary.
{ Thanks,
Arpit. }