Mask Pro 4.1 for Adobe Photoshop | 56 MB Mask Pro 4.1 now supports 16-bit images, Photoshop CS3 and Intel-based Macintosh computers. There are several new features included in Mask Pro 4 including pressure sensitivity support for Wacom Tablets. Now, the harder you press on your Wacom Tablet, the harder the edge you'll get in your mask. Press lightly and you'll get a nice soft edge in your mask. With Mask Pro 4 and your Wacom Tablet, masking has never been easier!