The key features of FlexViewer are as follows:

• Modern User-friendly UI
  FlexViewer has an interactive and user friendly UI that helps preview different document types such as FlexReport, SSRS, and PDF document. It follows standard practices used to design UWP Apps and its design makes it well suited for any device – Windows 10 PC, Windows Phone etc.
  
  
• Page Navigation
  Page navigation is available at the top of the FlexViewer control, with which you can navigate through the report pages and if you want to jump to a specific page number then you can type the page number in the page number textbox.
  
  
• View Modes
  FlexViewer supports different views of the reports/documents:
  • Continuous - Shows the pages in continuity.
  • Actual Size – Shows the pages in their actual size.
  • Page Width - Fits the page to the width of the preview window.
  • Whole Page - Fits the whole page in the preview window.
  • Rotate Clockwise - Rotates the view clockwise.
  • Rotate Counter-Clockwise - Rotates the view counter-clockwise.
  • One Page – Shows report pages page by page in a single page view.
  • Facing Pages – Shows report pages side by side.
  • Two Pages – Shows Two page view of pages.
  • Four pages – Shows pages in 4x4 mode.
  • Eight pages – Shows pages in 8x8 mode.
    
    
• Use/Reset Parameters
  The FlexViewer control adds interactivity, by letting you enter data parameters you require to display in your report. The control supports String, Boolean, Date, Integer and Float type parameters.
  
  
• View Thumbnails and Hierarchy
  FlexViewer allows you to view the thumbnails of the report pages and if your report contains Document Map, FlexViewer includes the Outlines panel, which helps you choose the required location to jump to.
  
  
• Page Settings
  The FlexViewer control allows you to change the page settings according to your requirements before printing your reports. You can just click on Page Settings icon in the left panel and set the following options:
  • Orientation - Potrait/Landscape
  • Size
  • Margins - Top margin, Bottom margin, Left margin, and Right margin
    
  
  
• Print
  FlexViewer allows you to print your reports using the Print icon, which provides the standard printer settings.
  
  
• Export
  FlexViewer allows you to export your reports and documents to various formats, such as HTML, PDF, RTF, GIF, JPEG, PNG, BMP, TIFF, Open XML Excel, and Open XML Word. You can also choose to open the exported document automatically after export.
  
  
• RightToLeft
  Apart from all the above features which are directly accessible from the UI, the FlexViewer allows you to set the direction of FlexViewer Tool panel by setting the FlowDirection property to RightToLeft or LeftToRight.