File List
The File List lists the pdf file(s) which were are added to the PDF Image Extracto. It shows the number of the raster images contained in the files, and controls if the images from the correspondent file are displayed in the Preview area.
Click on the check box to the left of the file name to add all the images from this file the the Preview area.
Alternatively, click on the "Show/Hide Image Preview" button.
"Select All" button selects all the files in the list, while "Unselect" button unselects all the selected files.
To remove files from the list, use the "Remove" button.