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 ...

The PDF viewer you choose is really dependent on what you need to do with the PDFs you download, but when it comes to viewing and editing PDFs, PDF-XChange Editor is the best program around. [jump ...

The editor comes in two paid tiers. PDF-XChange Editor, which allows you to edit text and graphics, annotate and secure documents, and create and convert PDF files, costs $56 for a single license.