Hi, I thought it was adobe reader but I really dont know what version but saying that it was only approx 3 year ago that I got it on. It definitely wasnt paid for and was free. I would open a PDF document and then go to sign on the right hand top side. I would then go to place signature, use image, and then select either the PNG or PDF file to add to the plans. Either option was completely fine to use and it was the same way for both file types. I also used an excel sheet that I made myself and would say it as a PDF and then stamp on the method above with no issues at all. Ideally I would love to go back to that program as it seems a lot easier then this one.
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