Frompdftodoc.dom Browser Extension Acts Like Browser Hijacker
Frompdftodoc dot com is the domain and website used to advertise a browser extension with the same name, called FromPDFtoDoc.
The issue with this is that the browser extension displays behavior and patterns typical for browser hijackers. According to its description and name, the extension should allow you to access free document file conversion services. In reality, the extension can cause bad redirects, and display intrusive and potentially harmful ads.
A lot of browser hijackers posing as extensions do this sort of thing - pushing ads that can often be sourced through rogue ad networks. This makes those ads not just annoying but potentially dangerous.
Rogue ad networks can serve up ads that link to misleading pages, scams and phishing portals, questionable content or untrustworthy websites, as well as other potentially unwanted programs.
As of the time of writing, the Frompdftodoc dot com website links to a URL located on the Chrome Web Store, but the link is dead and returns a 404, implying that the extension may have been taken down by Google due to its deceptive nature.