If I used pdfedit995 to put tax return in pdf format and then print it out, will it print ONLY the forms required to be filed?

It will print out what you tell it to.

pdfedit995 would typically assemble whatever you last created with pdf995 along with whatever you added to it. Look at the resulting PDF file and see it it includes what you need and nothing else.

irs.gov has pdf fill out forms for tax forms. So if paper filing, simply fill in the forms you need on your computer (you can save them with data), which you can print neatly, and sign as necessary. I typically do that, then do them on taxact.com, and once I figure if everything matches and is correct, e-file federal. Although, this year I free e-filed state on my state's website.

It will print everything that was written to the PDF document. If you only wrote the forms to be filed, that's all that will print. If you included all of the worksheets and notes, you'll have a pretty big pile to sort through.