PDF Mac Master Virus


PDF Mac Master

PDF Mac Master is an irritating computer application which can affect popular browsers such as Safari,Chrome, Firefox, Opera and others. The moment it gets installed onto the system, this application may start to stream ads of different kinds (pop-ups, banners, links, and page-redirects) on the screen of the main browser and to interrupt the users’ normal web surfing activity by prompting them to click on these ads.

PDF Mac Master Virus

PDF Mac Master delivers coupon, banner, pop-up, and other similar advertisements.

Such a piece of software is not as harmful as a Trojan horse infection or a Ransomware virus, but it can surely turn into a nuisance and may be related to certain security risks as well as annoying system issues.  Most security experts describe PDF Mac Master as an Adware app – advertising type of software usually used to generate pay-per-click profits for its developers. It is typical for the Adware to initiate sudden page-redirects to different sponsored websites and to generate unwanted pop-ups on the screen during web browsing. However, luckily, there is a fairly easy way to uninstall this annoying software and to remove all of its ads. In the paragraphs below, you can find a detailed removal guide with step-by-step instructions about that as well as a trusted PDF Mac Master removal tool which can effectively save you from the ads invasion.

PDF Mac Master may silently infiltrate your PC and get incorporated into your main browser without necessarily asking for permission from your side. What is more, it may set some changes to your Internet settings and may start to redirect you to various low-quality or even unsafe web locations, which increases the risk of clicking on something malicious such as a real computer virus, a Ransomware or a hidden Trojan horse. That’s why the best solution is to use the instructions below and uninstall PDF Mac Master in order to remove all of its commercial messages.


Name PDF Mac Master
Type  Adware
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms  Annoying ads may spam the screen during your web browsing.
Distribution Method Spam, ads, torrents, email attachments, free program bundles, automatic installers. 
Detection Tool

Remove PDF Mac Master “Virus”

PDF Mac Master Virus

The first thing you need to do is to Quit Safari (if it is opened). If you have trouble closing it normally, you may need to Force Quit Safari:

You can choose the Apple menu and click on Force Quit.

Alternatively you can simultaneously press (the Command key situated next to the space bar), Option (the key right next to it) and Escape (the key located at the upper left corner of your keyboard).

If you have done it right a dialog box titled Force Quit Applications will open up.

In this new dialog window select Safari, then press the Force Quit button, then confirm with Force Quit again.

Close the dialog box/window.

PDF Mac Master Virus


Start Activity Monitor by opening up Finder, then proceed to PDF Mac Master Virus

Once there, look at all the processes: if you believe any of them are hijacking your results, or are part of the problem, highlight the process with your mouse, then click the “i” button at the top. This will open up the following box:

PDF Mac Master Virus

Now click on Sample at the bottom:

PDF Mac Master Virus

Do this for all processes you believe are part of the threat, and run any suspicious files in our online virus scanner, then delete the malicious files:

Each file will be scanned with up to 64 antivirus programs to ensure maximum accuracy
This scanner is free and will always remain free for our website's users.
This file is not matched with any known malware in the database. You can either do a full real-time scan of the file or skip it to upload a new file. Doing a full scan with 64 antivirus programs can take up to 3-4 minutes per file.
PDF Mac Master Virus
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PDF Mac Master Virus
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    PDF Mac Master Virus

    The next step is to safely launch Safari again. Press and hold the Shift key while relaunching Safari. This will prevent Safari’s previously opened pages from loading again. Once Safari is opened up, you can release the Shift key.

    On the off chance that you are still having trouble with scripts interrupting the closing of unwanted pages in Safari, you may need to take some additional measures.

    First, Force Quit Safari again.

    Now if you are using a Wi-Fi connection turn it off by selecting Wi-Fi off in you Mac’s Menu. If you are using a cable internet (Ethernet connection), disconnect the Ethernet cable.

    PDF Mac Master Virus

    Re-Launch Safari but don’t forget to press and hold the Shift button while doing it, so no previous pages can be opened up. Now, Click on Preferences in the Safari menu,

    PDF Mac Master Virus

    and then again on the Extensions tab,

    PDF Mac Master Virus

    Select and Uninstall any extensions that you don’t recognize by clicking on the Uninstall button. If you are not sure and don’t want to take any risks you can safely uninstall all extensions, none are required for normal system operation.
    PDF Mac Master Virus

    The threat has likely infected all of your browsers. The instructions below need to be applied for all browsers you are using.

    Again select Preferences in the Safari Menu, but this time click on the Privacy tab,
    PDF Mac Master Virus

    Now click on Remove All Website Data, confirm with Remove Now. Keep in mind that after you do this all stored website data will be deleted. You will need to sign-in again for all websites that require any form of authentication.

    Still in the Preferences menu, hit the General tab

    PDF Mac Master Virus

    Check if your Homepage is the one you have selected, if not change it to whatever you prefer.
    PDF Mac Master Virus

    Select the History menu this time, and click on Clear History. This way you will prevent accidentally opening a problematic web page again.

    PDF Mac Master Virus How to Remove PDF Mac Master From Firefox in OSX:

    Open Firefoxclick on PDF Mac Master Virus (top right) ——-> Add-onsHit Extensions next.

    PDF Mac Master Virus

    The problem should be lurking somewhere around here –  Remove it. Then Refresh Your Firefox Settings.

    PDF Mac Master VirusHow to Remove PDF Mac Master From Chrome in OSX:

     Start Chrome, click PDF Mac Master Virus —–>More Tools —–> Extensions. There,  find the malware and  select  PDF Mac Master Virus.

    PDF Mac Master Virus

     Click PDF Mac Master Virus again, and proceed to Settings —> Search, the fourth tab, select Manage Search Engines.  Delete everything but the search engines you normally use. After that Reset Your Chrome Settings.

    If the guide doesn’t help, download the anti-virus program we recommended or try our free online virus scanner. Also, you can always ask us in the comments for help!


    About the author


    Lidia Howler

    Lidia is a web content creator with years of experience in the cyber-security sector. She helps readers with articles on malware removal and online security. Her strive for simplicity and well-researched information provides users with easy-to-follow It-related tips and step-by-step tutorials.

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