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…
• Universal Viewer - an all-inclusive approach to file viewing — Today, when the number of file types on an average home system is utterly humongous, the need for versatile viewers is very acute. Having several viewers installed on the system is not comfortable at all — they constantly struggle for being associated with specific file types, some cannot view specific files and some do it better than others... If you are tired of this hassle and want to find a single application…