Instead of risking your security with a code generator, consider these modern, legal options:
Using unauthorized serial numbers or bypassing software activation is a violation of Adobe’s Terms of Service and copyright law. Why Photoshop CS3 is Outdated
for CS3. Even with a legitimate serial number, you may find it impossible to activate the software through standard online methods.
If you need a powerful desktop editor for free, GIMP or Krita are excellent professional-grade tools. For a browser-based experience that looks and feels exactly like Photoshop, try Photopea .