To export 300 dpi canvas from Photoshop, follow the steps given below:
- Select Files in the Menu bar.
- Go to Export and then choose Export As.
- It is recommended that you choose PNG as the canvas’ extension.
- As our canvas is already 300DPI, there is no need to make changes within that area.
- Make sure that the Transparency window is checked.
- At last, just export the canvas.