A free PDF viewer that can easily add comments / text / images as PDF files to annotate "PDF-XChange Viewer"is. The operation is fast, the tab function is installed, OCR analysis is also possible, and ...

In the PDF-XChange Pro 2012 bundle, you get a complete PDF reader, writer, and editor. Tracker’s PDF-XChange Pro 2012 ($74) bundles a number of PDF-XChange apps that together attempt to create a suite ...

PDF-XChange Editor is has a boatload of features, for creating, editing, annotating, and securing PDF documents. The fully functional free versions offer plenty for many users, but you’ll have to pay ...

The best free PDF reader apps do more than just act as a PDF viewer - any modern browser can do that. What I'm looking for is tools that go beyond that, offering commenting, collaboration, and ...