Upload & Sell: Off
What folk don't understand when they suggest one should place a large watermark over the image (which I do on my website in any event) is that how do you tell a legitimate purchaser of your image (ie a client) that they must watermark it on their website. Placing an attribution ęphotographer's name is often ignored by infringers who really don't give a stuff about copyright protection. On several occasions, I have tracked back, via metadata, the source of the image to a client who, of course, did not pass it off to anyone else. It was just right clicked...Show more →
Thats the thing with the Web, Right click and images get copied or cross linked. It is the nature of the beast, any image that you license for web use etc. could potentially be stolen by someone who saw it on the site and liked what they saw so they just copy and paste elsewhere.
Unfortunately it is what it is, the best thing you can do is try to make your bulk of the profits on initial image sales and try and price in a shrinkage factor into the cost of doing business. And put in for you tax deduction X dollars of lost business due to theft.