This well-designed and easy-to-use free PDF viewer lets you mark up and create PDFs. Adobe’s popular PDF format makes files look great and Adobe’s free Reader lets everyone look at the files for free.

It’s leaner, it’s meaner, it’s Nitro PDF Reader. Available in 32-bit and 64-bit editions, new version 2 of the PDF viewer/creator/editor whose interface mimics Microsoft Office’s to a great extent ...