PHP Cloud SDK To communicate with GroupDocs REST APIs for documents and Images viewing. Render PDF, Word, Excel, PPTX, HTML, Images, emails etc....PPSX, PPSM, PPTM, POTX, POTM Visio: VSD, VSDX, VSDM, VST, VSTX...PDF, XPS eBook: EPUB, MOBI Image Files: BMP, GIF, ICO, JPG, JPEG...