Hello, I am going to order PDF Expert. I noticed that for the same price, I could get PDF Converter in addition to PDF Expert. For less than $1, I could get the Readdle Productivity Pack which includes Scanner Pro and Printer Pro in addition to PDF Expert. I think some camera app includes scanner functionality already. I don't know about the iOS version of MS apps but at least on the Mac, I could save to pdf from Words. So, I wonder if PDF Converter is useful. Which package do you recommend?