I am not sure I am doing this right. I installed the PDF24 printer and choose it as the printer when the window comes up and print to it. I am prompted for a filename, and give one, I get a file with no extension, and if I edit the name to add the pdf extension, Acrobat won't open it. Says it is not a pdf file or is corrupted. Can anyone help guid me? I am guessing I am doing something wrong, but can't figure out what. I have Windows 7 (64) pro and in particular am printing from an online garden creator from Mother Earth News. (I think it is Flash, but I'm not sure) there is a function in the program to print, and it works to the laser printer, but I wanted a color PDF. Thanks in advance.