periodic tables & ph scale infographic - posters - Ready to print9 pages - color posters poster size - letter size* So What you Need:• Printer at home or your office or preferred print shop• Scissors• Paper or sticker sheets (if printing yourself).• Adobe Acrobat Reader if you requested a PDF (free download athttp://get.adobe.com/reader/)• Optional items: adhesive, tape, or glue dots if using cardstock