The key features of FlexViewer are as follows:

• User-friendly UI
  FlexViewer has an interactive and user-friendly modern Ribbon-based UI that helps preview different document types such as FlexReport, SSRS, and PDF document. The ribbon contains command buttons clustered in groups.
  
• Use and reset parameters
  With FlexViewer, you can view parameters and reset them as well. You can enter data parameters of your choice to display a report. FlexViewer supports String, Boolean, Date, Integer, and Float type parameters.
  
• Refresh and stop rendering
  FlexViewer provides you options to Refresh and Cancel Report rendering through Refresh and Stop button.
  
• View thumbnails and hierarchy
  FlexViewer allows you to view the thumbnails of report pages and the hierarchy in outlines that allows you to jump to a required location.
  
• Page navigation
  Page navigation is available in the Navigation group of the FlexViewer control, which contains a set of command buttons allowing you to navigate through the report pages. Moreover, if you want to jump to a specific page number, you can type the page number in the page number textbox.
  
• Zoom in and zoom out with ease
  FlexViewer allows you to access Zoom dialog box and set the zoom properties using the Zoom button.
  
• Print
  You can also use the FlexViewer control to print your reports using the Print button which provides you with a Print dialog box containing standard printer settings.
  
• Export
  FlexViewer allows you to export your reports and documents to the various formats, such as DOCX, RTF, Open XML Word, Open XML Excel, HTML, PDF, GIF, JPEG, PNG, BMP, and TIFF.
  
• Tools
  FlexViewer provides you Hand tool, Text Select tool, and copy text tool that can be used to scroll in the window, select text to copy, and copy the selected text.