I am a bit confused, according to http://www.adobe.com/be_en/products/acrobatstandard/faq.html one license on 2 PCs are OK.
But according to http://helpx.adobe.com/x-productkb/policy-pricing/end-user-license-agreements-faq.html and several threads I got via google one license on 2 PCs are limited.
What is right now? I need it for 2 desktop PCs in one company, and they do have to work at the same time of course.
If you need the two installations to be used at the same time then you need to purchase two licenses. A single user license is exactly that, a single user at a time.