Best Photo Resizer For Mac
Resize, Rename, Convert and Share Hundreds of Photos in Mins. IFunia Photo Resizer for Mac is the best picture resizing tool that allows you to resize a single photo or a batch of photos to any size you want. 
The program allows you to easily adjust the size of your photo by percentage, by height, and by aspect.
Best Free Photo Resizer For Mac
This Mac image resizer supports a large number of formats, including RAW files, and helps you publish pictures online. You can watermark, resize and rename images, and adjust their settings such as contrast, gamma levels, etc. This is more than just an image resizing tool, however. Featuring a full file browser, it also offers batch processing, image compression and a host of built-in presets and manual controls. Photo-Resizer is a simple application that lets you change the size of multiple image files at once. In addition, the program works as an image converter and renamer. Therefore, you can save the resized photos into a different format than the original one and with custom names. FastStone Photo Resizer for Mac Design & Photo › Viewers & Editors FastStone Photo Resizer by FastStone Soft is a neat and handy batch image resizing tool that also allows you to convert, rename, rotate, watermark and modify photos. Convert your photo to a paint by numbers pattern; Convert photos to oil paintings for a great effect; Have fun with the photo to cartoon effect; Easily edit digital photos and other pictures; Supports all popular image formats; Crop, rotate, resize and flip photos fast. PhotoPad is designed to be ready to open and edit your photos quickly.
There are lots of sizes to choose from and you can even enter your custom size. You can also choose whether or not to 'Keep Proportions' during photo resizing. Moreover, the program allows you to resize, convert, rename and share images easily, making them faster to upload, download and e-mail. You can send pictures through your own e-mail application or using Photo Resizer for Mac's built-in client to share your resized photos with friends immediately via Facebook, Twitter.