Here are some of the download sites where you can find the recommended free PDF viewers:

• Foxit PDF Reader
  • Windows 7 or later - https://www.foxit.com/downloads/ choose PDF Reader Free Download
  • MAC OS X 10.12.0 or later - https://www.macupdate.com/app/mac/55772/foxit-pdf-reader/download
• Foxit PDF Editor for iPad and iPhone
  • iOS 11.0 or later – Apple App Store or the Foxit App Store at https://appstore.foxit.com/appstore/app-detail?app_code=MobilePDF
• Adobe Acrobat Reader DC
  • Windows 7 or later - https://get.adobe.com/reader/
  • MAC OS 10.6.4 or later - https://get.adobe.com/reader/
  • Android 2.2 or later - https://get.adobe.com/reader/

Configure Foxit and Adobe Readers for Mouse Wheel Zooming with Hand Panning

• Foxit PDF Reader for Windows and MAC
• File > Preferences >General > check “Make Hand tool use mouse wheel zooming”
• Adobe Acrobat Reader DC for Windows and MAC
• Profile and Settings icon > Preferences > General > check “Make Hand tool use mouse wheel zooming”