Since PSD isn't an open format, you can only open it with specific apps. Adobe Photoshop might seem like the obvious choice, but you can use another tool if you don't want to pay for a monthly ...

Photoshop versions differ because newer versions may have features and tools that may not be available in lower versions. Since there will be interactions between different versions because some ...

There are free Photoshop alternatives you can use if you'd rather not pay for the leading photo editing and graphics app.