Or call them (business hours only): US: +1-866-680-3661 Did this help you activate Foxit successfully? Let me know in the comments – or share your own troubleshooting tip below.

In this post, I’ll walk you through everything you need to know about Foxit activation keys – from locating yours to troubleshooting the most common errors. A Foxit activation key (license key or serial number) is a unique code that proves you own a legitimate copy of Foxit PDF Editor. It typically looks like this:

If you’ve just purchased Foxit PDF Editor (formerly known as Foxit PhantomPDF), you’re likely holding an activation key – a 20-character alphanumeric code that unlocks the full version. But where exactly do you find it? And what do you do when the software says “invalid key” or “activation failed”?