From the Thumbnail Viewer, press S. The Thumbnail Sizes dialog box displays. Set the desired Width and Height for the thumbnails. You can set both the Normal Thumbnails size (the default thumbnail view) and the Zoomed Thumbnails size. In Delay, type the number of seconds you want to hover your cursor over a thumbnail before the zoomed thumbnail displays. To display the document name below each thumbnail, ensure Show Document Names is selected. Deselect this setting if you do not want to display document names below each thumbnail. Click OK to save your changes.
