Time Doctor - Time Tracking and Time Management Software that is accurate and helps you to get a lot more done each day.
PDF-XChange Editor - The smallest, fastest, most feature-rich PDF editor/viewer available
Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
Nitro Pro - An affordable Adobe Acrobat alternative for editing and creating PDF
Hubstaff - Simple yet powerful employee work tracker with screenshots, timesheets, billing, in-depth reports, and more. Understand productivity issues and act on them.
DocFly - The Best Online PDF Editor. Create, Edit & Convert up to 3 PDF Files a month for FREE with the best free pdf editor!