The "Download Now" link directs you to the iTunes App Store, where you must continue the download process. You must have iTunes installed in order to open the link, and you must have an active iTunes account to download the application. This download may not be available in some countries.
From Kaz Agency:
Picturizr is a face and photo editing tool that allows you to create fun and wacky renditions of your friend or foes faces by using our custom overlays! Picturizr works like photoshop allowing you to add, scale and rotate custom eyes, ears, noses, eyebrows, hair, mouths, glasses, hats, beards, and frames to photos stored on your device. Use it to make a custom avatar or Facebook profile photo. Email your newest creations or upload it to Twitter and Facebook and share it with your friends. Embarrass and amuse your friends and family as you choose from over 60 overlays to add to their face or pets and let the good times roll. Even your kids will laugh as you add facial hair and put them on the cover a magazine. Picturizr is a fun image editor suitable for all ages.