flexpaper pdf viewer does not appear in the user article who made of Easyblog

Hello,
I've been using flexpaper in freecybers.com.

flexpaper so far proven to function properly due to appear in the admin article .

screenshot:


but flexpaper pdf viewer does not appear in the user article who made of Easyblog plugin

screenshot:

so, I think there's an eror in easyblog, anybody can help me to solve this?

Thank you