I own a website where I show a lot of photos. It happens that users copy them and post them on forums, facebook, other websites. I am thinking to purchase a flash software that show galleries, so nobody could copy the photos. Can someone suggest a product with these features?
They can still copy your photos out of the flash file..all they need is to buy a flash disassembler ..or if they dont mind the definition being low ..they just hit "print screen" on their keyboard and then open the image in paint or gimp or whatever.
Watermark your images across the middle ( diagonally ) so that it doesn't interfere with them too much ( but is readable ) with your domain name and the copyright symbol..and make sure that the exif fields include your domain name and copyright info ( you don't need to mark copyright legally they are from the moment they are created ..but it helps against those claim "they didn't know" ) ..that will stop many ...you can never really stop all of them .
Was too late ( due to eating dinner ) to add this via "edit" ..if you want to go the flash route anyway . Photo galleries can be very good in flash ..
Take a look at some of the things on offer at "activeden" ( it is a dot net ) if you like images.
They have work from various freelance designers "deep linking" xml controlled flash galleries ..the deep linking means that they'll index in Google etc almost or as like regular HTML sites will ..the XML means that you can customise ( massively so they really are unique to you ) them ..easily without knowing any action script ( and dont be afraid of the XML part ) they come with sample XML files that the designers tell you what and how to change parameters ..
And you can get flash sites from them from twenty dollars ( even less sometimes ) and upwards for good ones.
I've no commercial connection with them ..I just like some of the work shown there very much .;-)
Watermarking images is a good option, it spreads your brand and also makes it harder for others to use them just like that. I'm not so much into flash galleries but they are a good option, just remember the watermark, why? because it is very easy to hit print screen to capture the image and paste it in some photo editing software to crop it.
You could also use some folder structure to organize the images while keeping all of them named equal, it gives people a hard time when saving your images to disk as the computer will ask for an overwrite. But anybody can still get them by capturing the screen.