All the posts are quite old in regards to this question so I wanted to confirm that the previous blogs are still pertinent.
I have found a lot of details so I just will summarize a little and of course, I expect you will ask me questions (Hopefully, I can answer them.) I have found that if you want to only use 1 FORM for printing a document to A4 paper and to Letter paper, you need to create the FORM within the smaller dimensions of the printable text for the manufacturers printer. The second option is to create 2 FORMs. One FORM for A4 papersize and another FORM for printing to Letter paper. Then within the ABAP code based on company code, use the appropriate FORM for the papersize that you want to print.
Can anyone help me further with this printing requirement?
Thank you!