PS LOGO canvas size is not fixed. Set the steps as follows:

1, the computer opens photoshop software.

2. Click the file in the upper left corner of Photoshop, and then click New in the file.

3. Click New to open a new window.

4. Set the canvas size first, PS is a bitmap, which will be distorted after enlargement. Set the size as large as possible and set the resolution to 300.

5. After setting the size and resolution, click OK.