If you could give as much information as possible it would help, working with information is so much easier than working blind.
You are asking if anyone recognises it and someone may do that, but my method usually involves searching a 'suspected' family within a database if there is one, and google images. It's easy enough to copy the plant from the pdf by highlighting and copy on a right click, then paste in a google image search.
The plot number if you could find that out would make searching the pdf easier as you can use (Ctrl + F) which brings up a little box on the top right corner, then the drop box "find next in current pdf" will take you directly to those entries.
