Okular is a universal document viewer based on KPDF for KDE 4 with support for advanced document features, such as annotations, forms, and embedded files.
Okular combines the excellent functionalities of KPDF with the versatility of supporting different kind of documents, like PDF, Postscript, DjVu, CHM, XPS, ePub and others.
(!) If Okular is your first KDE application for Windows, it will take 208 MB disk space and 79 MB to download from http://windows.kde.org/
