Thumbnails are displayed in the Pages panel. You can enlarge, reduce, embed or un-embed thumbnails.
To reduce thumbnails
Open a PDF file.
Display the Pages panel from the Navigation Panels.
Right-click a thumbnail and select Reduce Page Thumbnails from a shortcut menu, or
Click Options and select Reduce Page Thumbnails.
To enlarge thumbnails
Open a PDF file.
Display the Pages panel from the Navigation Panels.
Right-click a thumbnail and select Enlarge Page Thumbnails from a shortcut menu, or
Click Options and select Enlarge Page Thumbnails.