Great progress can be seen here an actual mainframe printout. Quite honestly I didn’t expect to make this much progress today. Currently the file location is hardcoded in the program. So I’ll need to accept command line arguments, also the option to print blue. I did successfully test several other Hercules MVS (TK4-) printout files though. Interesting differences between the Python and the Go Python PDF handling. In my Python program you 1st create the canvas…the greenbar page, then you draw on it. The Go program on the other hand you simply apply the background color to your text line. Alignment is harder with the Python package or some may say you have more control because you have to be precise with the positioning. You could actually print partially on a green bar. On the other hand when you need to do a form feed you simply output the canvas. I never did feel I had a great grasp on using the Python package. In Go on the other hand you must write out the remaining blank color bars and holes, to fill the page.