Read smart reviews:

• STDU Viewer - an advanced PDF, DjVu and multi-page TIFF viewer — If you occupation involves a lot of reading (especially of technical texts), you may have noticed that all the documents usually come in one of the following formats: PDF, DjVu and multipage TIFF. Unfortunately, these are three independent file formats that require separate viewers, which creates a certain problem. If you need an all-in-one viewer that will read all these formats with equal efficiency, make sure not to miss STDU Viewer! STDU…
• PDF-XChange Viewer - a powerful free PDF viewer and editor — PDF files are so popular today that you can find them anywhere on the web. They are used for anything — from a booklet of an online car dealership to the menu of a Mexican restaurant around the corner. PDF’s are compact, have an excellent compression/quality ratio and are used universally, so what else would you look for in a perfect document format? Easy editability. PDF-XChange Viewer is an extremely…