i need authorization code , for active the cs3 . please help me ..
Adobe no longer provides support for CS3, so there is NO way to call for a code
CS3 activation server IS still working https://forums.adobe.com/thread/2209967
-and activate offline via chat https://forums.adobe.com/thread/2286195
Download & Install instructions https://forums.adobe.com/thread/2003339
-and many help and download links https://helpx.adobe.com/download-install.html
-kglad links in reply #1 here https://forums.adobe.com/thread/2296468 may help
-you will need to enter your original serial number during install for non-Cloud programs
Lost information - see reply #1 in https://forums.adobe.com/thread/2008767
- page has links to programs to find an installed serial number in Mac or Windows
- includes link to your Adobe account to check for registered serial numbers
- when you find your serial number(s) write them down and put in a desk drawer
CS3 is probably NOT going to install on a new Mac or Windows computer
CS6 and earlier programs have not been tested and will not be updated for Mac El Capitan/Sierra
-which means that you try to use CS6 and earlier at YOUR risk of having problems due to Apple updates
-Adobe has a fix to Apple's problem of not maintaining backward compatibility in El Capitan/Sierra
--several help links inside this message https://forums.adobe.com/thread/2301916
-also install OLD Java runtime if needed https://support.apple.com/kb/dl1572?locale=en_US
An idea that MAY work to install and/or run old programs in Windows 10... works for some, not for others
-RIGHT click the program icon or EXE and select a compatibility mode in the pop up option window
-or Run as Administrator http://forums.adobe.com/thread/969395 to assign FULL Windows permissions may help... says Encore, but sometimes required for ALL Adobe programs (this is NOT the same as using an Administrator account)
-or more on permissions https://forums.adobe.com/thread/2293598
NOTE - Win10 anniversary update version 1607 has caused MAJOR problems with old programs, so the above may not work
John Smith wrote: "CS3 is probably NOT going to install on a new Mac or Windows computer.."
Oh, it absolutely DOES.
I have installed PSCS3 to a new work MacBook running macOS sierra - (and so far is still working under the High Sierra beta I installed a few days ago) - you WILL need to take the Java for OSX Lion or greater update from Apple, (apparently there are some older libraries now long deprecated that it needs) and I rumbled my boss for the old Windows disk we have and installed it to this very machine - Win 10 w/ Creator's Update - and it's running just fine.
How can I activate photoshop CS3
You can't. The activation server was closed down in the 5 years since this message.
cs2, cs3 and cs4 cannot be activated. there's no work-around.
you can install any of those (on a compatible computer) and use the 30 day trial. then you can install on another computer for another 30 day trial, or reformat the hard drive on the computer with the expired trial, reinstall and have another 30 day trial.
you can mix and match those steps ad infinitum.
that's the best that you can do with your cs3 (and likewise for others with cs2 and cs5)