Features:

- Open an image file or an entire folder

- Drag an image file or folder into Image Viewer

- View single images or thumbnails

- Adjustable thumbnail size 

- Search sub folders for images

- Zoom to fit, actual size, zoom in, zoom out

- Scrolls zoomed images and large images in actual size 

- Full screen mode

- Slideshow with preferences for customization

- Supports retina display

- Supports trackpad swipe

- Supports mouse scroll wheel 

- Mouse scroll wheel to advance images 

- Mouse scroll wheel zoom when shift key is pressed 

- Keyboard shortcuts for most functions

- Open in Finder and with Preview

- Open from and share to Photos 

- Set image as desktop picture

- Move to trash to delete images

- Image Info window with EXIF data

- Safe sharing removes metadata before sharing 

- Plays animated gif files

Preferences: 

- Upsizing images

- Loop through 

- Showing file names in thumbnail view

- Searching subfolders

- Size app to first opened image

- Size app to each image

- Reverse scroll wheel advance

- Launch app in Full Screen

- Dark gray or black background - Full Screen 

- Dark gray or black background - Windowed

- Fade during slideshow 

- Random order slideshow

- Don’t sleep during slideshow

- Slideshow delay time 

Supported Image Formats: 

jpg, jpeg, tif, tiff, gif, png, psd, bmp

Supported RAW Image Formats: 

nef, cr2, arw 

Image Viewer is a great way to look at your photos and images. Just give it a try!