Hide Toolbar
Use ViewerPreferencesHideToolBar option to specify whether to hide the viewer application's toolbars when the document is active. If ViewerPreferencesHideToolBar is true then the viewer application’s toolbars are hidden.
Hide Menubar
Use ViewerPreferencesHideMenubar option to specify whether to hide the viewer application's menu bar when the document is active. If ViewerPreferencesHideMenubar is true then the viewer application’s menu bar is hidden.
Hide Windows User Interface
Use ViewerPreferencesHideWindowsUI option to specify whether to hide the user interface elements in the document’s window (such as scroll bars and navigation controls) leaving only the document’s contents displayed. If ViewerPreferencesHideWindowsUI is true then document’s user interface elements are hidden.
Fit Window
Use ViewerPreferencesFitWindow option to specify whether to resize the document's window to fit the size of the first displayed page. If ViewerPreferencesFitWindow is true then the first page displayed is resized to fit the document's window.
Center Window
Use ViewerPreferencesCenterWindow option to specify whether to position the document's window in the center of the screen. If ViewerPreferencesCenterWindow is true then the document’s window is positioned in the center of the screen.
Page Layout
Use ViewerPreferencesPageLayout to specify the page layout to be used when the PDF document is opened. If the value is Single Page then one page is displayed at a time. If the value is plOneColumn then pages are displayed in one column. If the value is plTwoColumnLeft then pages are displayed in two columns with odd numbered pages on the left. If the value is plTwoColumnRight then pages are displayed in two columns with odd numbered pages on the right
Page Mode
Use ViewerPreferencesPageMode to specify how the document should be displayed when opened. If the value is pmUseNone then neither document outlines nor thumbnail images are visible. If the value is pmUseOutlines then document outline is visible. If the value is pmUseThumbs then thumbnail images are visible. If the value is pmFullScreen then document is opened in Full Screen mode with no menu-bar, window controls or other window visible.