The Ads by PDF Viewer or Chrome PDF viewer popup virus is a nasty browser addon that stealthily invades a computer and hijacks Internet. It malicious changes homepage and other DNS settings and then starts to show commercial ads on targeted PC. So when this malware attacks, victims start to see strange advertisements that keep popping up on screen while surfing the web. At first you might ignore those ads because they totally look like normal adverts we are used to see on Internet. But in reality the Ads by PDF Viewer are linked to spamful websites that are involved in malicious activities. The Chrome PDF viewer popup virus or Ads by PDF Viewer actually tracks your web history, collects personal information and then brings you ads relevant to your interests. But all of its ads are useless junk that is linked to harmful domains.

This adware may appear with different names as it has variants such as Powered By PDF Viewer or Brought to you by PDF Viewer. Although it mainly targets Google Chrome users but it can affect Safari, Internet explorer and Mozilla Firefox as well. The Ads by PDF Viewer is not only a piece of software that distributes unwanted advertisements but it poses a serious threat to ones security and privacy since it has ability to sniff your sensitive data. The stolen data can be transmitted to remote servers owned by hackers. Therefore we strongly recommend immediate removal of Ads by PDF Viewer and its clones.

What are Symptoms and possible risks of having Ads By PDF Viewer or chrome pdf viewer popup Virus virus

  • It causes unstoppable pop-up or pop-under windows filled with advertisements
  • Frequent toolbars and gaming applications may get downloaded without your permission
  • System performance may decrease and Internet may run super slower then usual
  • You may find ads matching with your interests, this happens because the malware already has knowledge of your favorites and interests because it is tracking your activities
  • It may cause data loss, identity theft, loss of money or cyber attacks on your system
  • Although Ads By PDF Viewer or chrome pdf viewer popup Virus is mostly installed on a computer against user`s will, though it has its own official webpage where anyone can download it. You are strongly recommended to be careful when installing or surfing the Internet to avoid accidental or intentional installation of such malicious programs.

    How to get rid of Ads By PDF Viewer or chrome pdf viewer popup Virus virus

    To manually remove this, you must be aware of what you are going to do.
    1: Go to Control Panel and find the Programs and Feature or Uninstall Programs wizard.
    Inside the programs list, find out any suspicious browser add on, toolbar and click Uninstall.

    2: Now go to your web browser`s settings (Chrome, Firefox, Internet explorer).
    Navigate to Extensions and also to Plugins and then Uninstall any suspicious or unknown file that you did not intentionally install.

    3: Open Documents and Settings folder (Usually Located in C: or windows installation drive), remove/delete any folder or files linked to Ads By PDF Viewer or chrome pdf viewer popup Virus

    Automatic Removal

    To remove this malware automatically, Following tools are best:


    Anti-Malware + Anti-Spyware for free. 1 User 3 PC’s for $39.95.

    Download SurfRight Malware Removal tool here.