Help entries to pdf document

[watching]

I managed to get my pdf document to save to the sdcard, and can open it with adobe reader. When I open this document on my PC, it has some fields that you can make entries to ( it is a interactive running program/log). However, on my phone ( Motorola milestone 2), those fields are not active?

Any suggestions, I was hoping to use it on my phone as a handy way to see what I have to do, and then record what I have done ( bit hard to carry around my PC !!!)