Nitro PDF Reader vs SumatraPDF

Do everything you expect with a PDF reader, and then some. Create PDF files from any source easily. Sign them securely. Then collaborate with anyone, anywhere. Select the most appropriate Page View for the document you're viewing: Single, displaying one and only one page at a time; Continuous, displaying all pages as a single uninterrupted column; Facing, displaying two pages side-by-side like a magazine or book; and Facing Continuous, with facing pages side-by-side as two vertical columns.

SumatraPDF, also known as Sumatra, is a free and open-source software PDF reader for Microsoft Windows only. The program also opens Open XML Paper Specification, DjVu, EPUB, XPS, CHM, CBZ and CBR, and MOBI files