No. If a page is viewable in a browser, this does not automatically mean that it can be rendered by PDFreactor. Most web browsers are designed to display any type of legacy HTML code, including invalid and broken pages.

This often causes the display of a page to diverge across browsers or from the way the standard describes it. Using PDFreactor, the page will be rendered conforming to the HTML standard unless it is invalid XHTML or XML. In this case, it will first be handled by the clean-up process, which may yield different results depending on the type of errors on the page.