Probably one of the most feature-rich free PDF viewers, PDFXchange (Windows 7, XP, Vista, 2000) allows you to modify PDF files with comments, annotations, add custom stamps from any image, reorder PDFs with multiple pages using drag-and-drop and even type directly onto the page. If you like, you can also save the PDF file as a JPEG, BMP, TIFF or PNG image or send the file by email from within the viewer. Once installed, PDF-Xchange integrates with Windows and offers plugins for IE and Firefox. Download it from www.tracker-software.com
