Hancom Space allows you to view file formats of MS Word, MS Excel, MS Power Point, PDF, and HWP as images on your web browser without installing any additional software. It, however, may take some time to convert documents to image format.
*support file formats : hwp/hwpx/owpml, show, cell, doc/docx/dotx, xls/xlsx, ppt/pptx, csv, pdf, html