You can activate by saving the fpmkey.txt file directly into the application's installation folder (typically C:\Program Files (x86)\ Foxit Software\Foxit PDF Editor ).
How to hide the activation code in Foxit PhantomPDF application foxit reader activation key
This method is used if you purchased a one-time license and received a 30-digit alphanumeric code. How to Activate Foxit PDF Editor You can activate by saving the fpmkey
Authentic reviews suggest that if you are prompted for a key, you likely have the paid version installed. Most reviewers recommend simply switching to the standard Free Reader to avoid the hassle of activation entirely. 3. Subscription vs. Perpetual License foxit reader activation key