I was unable to add some but not all pdfs to my Q Classic Premiere ver R64.35. I use FoxIt pdf reader. After trouble shooting with Quicken help and some extensive testing, I was able to definitively prove that if the pdf is open in foxit, Quicken will not accept the file. As soon as I close foxit, I can add the same file. I don't know if there's a similar problem with other pdf readers.