Thumbnails

	Open an image in the viewer from a directory of your choice. Click the File menu and select Thumbnails, or press the letter T on your keyboard. A dialog box (see above) will open, and will fill with thumbnails representing the images in the directory.
	Please note: these thumbnails are for quick access to the images in your directory. If you want to make them into thumbnails, use the Batch Conversion option on the Save menu. Use the advanced options to set the size of the images to 80 x 80, or whatever size you would like the thumbnails. Be sure and set the output directory to be different from where the originals are stored.
	Double click any thumbnail to open that image in the viewer. If you change directories by opening another image file, the thumbnail dialog will change to display those images. For large images, you can minimize the thumbnail dialog. In the upper right corner of the dialog are three buttons; the third from right, looking much like an underline (_) character, is the minimize button. Click this to shrink the dialog to a small button at the lower left of the IrfanView window. Click the button to restore the dialog to its full size. You can also maximize the dialog to fill the entire screen. Click the middle button of the three in the upper right corner (the box shape.) Click the button again to restore the dialog to normal. To close the dialog, click the exit option on the dialog's menu bar. You can also click the X button in the upper right corner of the dialog. If the title bar of the dialog is blue, you can also press the ESC key on your keyboard. (If the bar is grey, and the bar of the main viewer window is blue, ESC will close the viewer, itself.) The options choice on the dialog's menu bar allows you to control the size and quality of the image thumbnails. Click the menu to open the dialog shown below. The first option is Use Resample instead of Resize for creating thumbnails. Click the check-box to have better quality thumbnails displayed. This option may take longer for the images to appear. Thumbnail size: click one of the option buttons to set a size for the thumbnails. The default size is 80 pixels by 80 pixels. When done making your choices, click the OK button to exit the dialog. You can also exit by clicking the X button in the upper right corner of the dialog. If the titlebar of the dialog is blue (not grey,) another way to exit is to press the ESC key. Press the Cancel button to exit without making any changes.