How to customize font and layout of Sales Invoice print out PDF?

I am trying to customize the layout and font type, font size of the Sales Invoice. Can someone shed some lights here?

Also, I am trying to move the Recurring Date of an Item in a Sales Invoice so it appears right next to the corresponding line item, instead of showing it at the every bottom of the Sales Invoice which doesn’t make any sense.

Thanks!

Hello, anyone please help. Thanks.

already answered in here: How to change the print layout of a Sales Invoice? - #2 by amandadtp