PDF-XChange Viewer

PDF-XChange Audience is definitely an alternate viewer for PDF files that allows one to annotate and view PDF files. You can include sticky notes, text, and additional annotations and conserve them for the document, that'll w. Read more about PDF-XChange Viewer
PDF-XChange Viewer PDF-XChange Viewer screenshots
PDF-XChange Viewer screenshot 1
PDF-XChange Viewer
PDF-XChange Viewer screenshot 2
PDF-XChange Viewer 2.5.322.7