Downloading Adobe Photoshop for free is not legal, as it is a paid software. However, you can download a free trial version of Adobe Photoshop from the official Adobe website. Here are the steps to do it:
Visit the Adobe Photoshop website: https://www.adobe.com/products/photoshop.html
Click on the "Free Trial" button on the website.
Sign in with your Adobe ID or create a new one if you don't have an account already.
Select the version of Adobe Photoshop you want to download (usually the latest version).
Select your operating system (Windows or macOS).
Choose your language and click "Download Now".
The Adobe Creative Cloud installer will download and then launch. Follow the on-screen instructions to install the software.
Once the installation is complete, open Adobe Photoshop from the Creative Cloud desktop app or by finding the program in the Start menu or Applications folder on your computer.
You will be prompted to sign in using your Adobe ID before you can start using Photoshop.
That's it! You should now be able to use the free trial version of Adobe Photoshop for a limited period of time. Note that the free trial will eventually expire and you will need to purchase a license to continue using the software.