The GroupDocs.Viewer Cloud enables you to rotate individual pages when viewing documents in HTML/PDF/Jpg/PNG formats. To flip/rotate pages use the PageRotations property of ViewOptions class. There are three options that you can pass:
On90Degree - instructs to rotate page on 90-degree clockwise; On180Degree - instructs to rotate page on 180-degree clockwise; On270Degree - instructs to rotate page on 270-degree clockwise; The following code snippet shows how to rotate output pages when viewing a document as PDF...viewing documents in HTML/PDF/JPG/PNG formats. To flip/rotate pages...