Foxit Reader is a free PDF document viewer, with incredible small size, breezing-fast launch speed and rich feature set. You can view PDF files on the go and it's in PortableApps.com Format for easy use from any portable device. It is incredibly small. The download size of Foxit Reader is just a fraction of Acrobat Reader 20 M size. Breezing-fast: When you run Foxit Reader, it launches instantly without any delay.