How To Watermark Your Images

Towards the beginning of my other sites, El Cantar de la Lluvia (in Spanish) and The Flight of the Platypus (in English), I was looking for a way to embed at least some ownership info in the pics. I don't mean something fancy like Digimarc, or even a full-image ghosted overlay. I just wanted an easy and automated way to add a string to the image along the right hand side, rotated, and hopefully using a tool smart enough to detect if the image was horizontal or vertical.

I tried quite a few OS X apps, some of them free, some demos, and hated them all. I decided to write my own tool to do it. After all, I do have an excellent and easy to use image handling library at my disposal called PNGwriter.

Read the rest of this example here. The code is available here.

versión en español　| 日本語の　ページ