Hi folks, my name is Ivan.
Please let me know if the free version let me include my company logo in quations and bills.
Please the attached file.
Thanks for your time…
Setup >> Printing >> Letterhead >> Insert your company logo.
ERPNext is not just Free & Open Source but one of very few business applications in which there is no restrictions whatsoever as there is no differentiation of Community & Enterprise Editions!!
So, you are actually enjoying Enterprise class ERP software for absolutely no money! 
Thanks Sunil!