"Ashley Sheridan" <ash@xxxxxxxxxxxxxxxxxxxx> wrote in message news:1284763747.12459.40.camel@xxxxxxxxxxxx > On Fri, 2010-09-17 at 18:41 -0400, TR Shaw wrote: > >> Gary >> >> you do realize that if you display the image in a browser without the >> watermark, simple drag and drop can copy the image as is (eg without the >> watermark) >> >> Tom >> >> On Sep 17, 2010, at 6:21 PM, Gary wrote: >> >> > >> > ""Gary"" <gpaul@xxxxxxxxxxxxxxxx> wrote in message >> > news:1F.27.30333.1D5E39C4@xxxxxxxxxxxxxxx >> >> Is there a way to insert a watermark on an image as it is being >> >> uploaded >> >> to the image file, then removed when it is called from a database to >> >> be >> >> viewed on a website? >> >> >> >> The rational behind this is I have a photographers site I am doing, >> >> and I >> >> am limiting the size of the images somewhat to reduce pilferage and I >> >> would like to be able to show the images a little larger, hence with a >> >> bit >> >> more clarity and detail. >> >> >> >> Thanks for your input. >> >> >> >> Gary >> > >> > More info. >> > >> > I was asked off board where the watermark would show, so I am sorry if >> > I was >> > less than clear. The watermark would show on an image that is being >> > downloaded from the server. If this were to work, I could let viewers >> > see >> > an image with a size of 640px in width to show clarity, (they are only >> > able >> > to see an image now with a width of 250 px now) should they decide to >> > help >> > themselves to it, it would download with a watermark on it, but the >> > watermark would not appear on the web page itself. >> > >> > Gary >> > >> > >> > >> > __________ Information from ESET Smart Security, version of virus >> > signature database 5458 (20100917) __________ >> > >> > The message was checked by ESET Smart Security. >> > >> > http://www.eset.com >> > >> > >> > >> > >> > >> > -- >> > PHP General Mailing List (http://www.php.net/) >> > To unsubscribe, visit: http://www.php.net/unsub.php >> > >> >> > > > There's no way to do this. Anything you see in your browser has already > been downloaded in some form onto your computer, and once that happens > it's out of your control. PHP has no way to detect if the image is being > requested by the browser to view or download, so can't do what you want. > > Besides which, if an image is displayed in the browser, there are dozens > of ways to get at it, from right clicking and saving it, using the media > tab of the file info dialogue (firefox), using firebug to view it, > saving it from the cache, saving the whole page, using wget to spider > and save that page, etc. > > The only way to do what you want is to have your own custom browser app > (possibly written in Java) but even then someone could simply do a print > screen. > > At the end of the day, if you want to prevent people downloading your > images, then just don't show them the image. > > Thanks, > Ash > http://www.ashleysheridan.co.uk > Ashley When I right click on an image, I assumed it is being called from the server, not from the browser, which is why I thought this might work. Thanks for your help. Gary __________ Information from ESET Smart Security, version of virus signature database 5458 (20100917) __________ The message was checked by ESET Smart Security. http://www.eset.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
