Pekka wrote in post #19129437
As tourscapekeepers said, you have a (security) problem there with image sizes. Better take your site down until you deliver only small previews of your images. Never put such large (originals) to a publicly viewed area, you won't sell a single print if people can have your source files in such a way.
Dan Marchant wrote in post #19129912
+1 to the above. Not only is it easy to circumvent the right click prevention and download the high res image, it also makes site/image loading needlessly slow.
To be honest, it's almost a losing game no matter what you do. For example, even when an image is downsized for public display, there is now software* out there which will not only upres thumbnails that are merely 800 or 900 pixels on the long side that will also improve the quality, eliminate pixelation, and remove noise at the same time netting an image good enough to be printed at 8x10, 11x14, and perhaps even larger. And if used to print a canvas at 100 or 150 lpi, even larger yet.
About the only way to discourage theft any more is with watermarks. And no, that doesn't stop thieves either but it does make it harder because they have to take the time to remove the watermark.
* - I am intentionally not naming the software I am thinking about. I hope nobody else does either. Some may know about it, some may not. However, there is no reason to help thieves by telling them what to buy.