Does installing the Acrobat Reader DC Font Pack enable unauthorized tracking on the Internet?

I suspect that Adobe collects and sells far more “metadata” information about users than currently disclosed to the public.   

Reduced tracking of users on the Internet reduces metadata available to sell to 3rd party companies and thus reduces possible Adobe revenue and profits.

This partly explains why Adobe is opposed to Internet privacy laws that protect users in the EU.

In the USA, California has started to implement laws similar to the EU that protect the privacy of Internet users in California.  

Adobe tracking of users on the Internet occurs regardless of:

1. which Adobe product is installed or opened by a user,
2. whether or not the user is the owner of the Adobe product(s),
3. whether or not they access a 3rd party website that has Adobe products installed on that website and
4. regardless of type or age of Adobe software that is installed, and/or whether it is Adobe Acrobat Reader, Flash, Creative Suite, etc.  

Some forum members question if Adobe monitors user actions on the Internet and collects metadata without the user’s express (written) permission.

What I discuss is not slander against Adobe… Please view the following Internet posts as example articles that relate to companies in the USA currently tracking Internet Users access and collecting unauthorised use metadata for that company's benefit or profit.

• From the Electronic Frontiers Foundation: Behind the One-Way Mirror: A Deep Dive Into the Technology of Corporate Surveillance
• From the WeLiveSecurity Forum: Adobe Flash - the Spy in your Computer
• From the TrustArc Blog: Websites Are In The Dark About Third Party Tracking

Both Microsoft and Facebook have been charged with violating Internet users personal privacy, convicted, and paid huge corporate fines levied by governments in the USA and EU countries.

In the EU member countries with Privacy Laws, Adobe and other software companies must conform to EU regulations that require user approval and prior notification when software cookies are installed on a user’s browser. 

According to the EU, Users should also be notified whenever that company tracks or monitors a user’s movements and/or actions on the Internet without that user’s prior authorization.

Generally, these EU companies that maintain websites require users to click on a popup message so allow Cookies use and tracking on the Internet, whenever the user tries to view or access the company website.

Adobe USA websites currently does not have any such pop-up message that requires users to acknowledge software cookies are being installed.  Adobe does not adequately disclose the user’s Internet access, and website use is being tracked with their Browser when the users visits any Adobe website or 3rd-party websites that use Adobe products.

If it's "undisclosed and unauthorized" what makes you think we would know about it? Or if we did, would say so?

And those "rumors" you mention are very serious. If true, they mean Adobe is breaking the law in multiple locations, most notably the EU. I would recommend you don't repeat such "rumors" if they can't be substantiated, if you don't want to be guilty yourself of libel.

These fonts are not web loaded on demand. It’s a self contained download. The font pack so t change the web connections Adobe make; it already exists you to login. Consult Adobe privacy statement and Sidtware EULA for the privacy rights you give up.