Sorry somehow I was never notified for this message. On 20 Sided Stories we simply used a Google Doc. Pokemon Showdown has an import/export feature. It is a little clunky since it is just raw text, but so long as you label things you can just copy/cut/paste back and forth and it should work seamlessly. If you are referring to the character and pokemon sheets, you should be able to open up the PDF's in something like Adobe Acrobat. No need to print! Just duplicate the file for new uses.