Watermark.ink - Online Photo Watermarker
AG Audio Watermark Generator - AG Audio Watermark generator is a little app for both mac and pc that will help you to add an audio watermark to your original track in a fast & easy.
textmark - Protect your content with an invisible, trackable watermark.
Fastwatermark - Fastest way to watermark multiple images for photographers.
Watermarker Pro - Watermarker Pro is a software that is used by Mac users to watermark their photos, and they can add any kind of text, logo, or anything that they want in their photos.
Watermarkup - Watermark 30 Photos in Seconds Without Losing Image Quality. No monthly payment. No Ads.