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Aspose.Pdf is programming API which offers the feature to create as well as manipulate existing PDF documents but it does not provide any option to preview existing PDF files.
However as per your requirements, you can use this API to set BackGround Color for PDF pages, set image as background for PDF pages, add Graph objects / shapes i.e. Circle, Rectangle, Line etc, Add text with custom formatting (Font size, Font Face, Bold etc). It also provides the feature to convert PDF pages to Image format, so you can create an application where you can select various options for PDF documents (color, fonts, background etc) and convert PDF pages to image format and render the image inside image viewer inside your application to preview resultant file. For further details, please visit
Should you have any further query, please feel free to contact.