Mac OS Developer Tools
Uberlayer puts one image on top of all other windows of your computer screen at its actual size. Proof a design to the pixel, watermark a presentation or show off to colleagues with that hot picture of your new ... puppy.
Copy & paste, drag & drop or use the layer menu to open almost any image source.
+ Displays JPG, PNG (also with transparency), TIFF, GIF and PSD.
+ Paste images from the clipboard.
+ Keyboard control for pixel precise positioning.
+ Click 'through' the images in locked mode.
+ System wide drag & drop support.
Now compatible with OS X 10.11 El Capitan