Hey people, 

could you recommend a document generator. 

The main features that are needed are: 

 - puling info from related records (children and even grandchildren) to the object from which the generation has started so that the info from them could be used in the document generation 

 - form that gathers info from user that could be used in the logic for the generation of the document

Any kind of suggestions are welcome !!!

Have a calm day.