Watermark photos LONG TERM project

ok, here is the deal. looking to hire a person to add a simple logo watermark to about 1000 photos. I dont care how you do it, i dont care if you use a script or a software package or a photoshop plugin. I will provide you with a zip file with 20 folders inside. each folder has 50 images. you must watermark each photo in the same place (bottom right hand corner) with a logo watermark. i have the logo COMPLETED! it will be sent to you in adobe AI and JPEG format. There are two versions of the logo. one for DARK colored photos and one for light colored photos. this is really easy. if the photo has a very dark area and you apply a dark colored watermark, it looks BAD. so, in this case you need to apply the LIGHT colored watermark/logo.. pretty simple stuff here. also, if this project works, i will hire you long term. anyways, I will be sending you about 200 photos per month for you to watermark. EVERY photo will be watermarked with the same logo in the same place.. I just dont have time to do this.. lowest bidder gets the job. i KNOW there are specialized applications that can do this. so, get one or use one or make a script.. lowest bidder gets the job. and remember, this is for ONGOING! so, bid know on the first 1000 photos and we will go from there in the future! thanks!