Create a blank canvas
On the Photoshop on iPhone homescreen, select Create new > Create a new canvas.
In the Create new panel that opens, select the preferred canvas size.
Make further edits using the AI Assistant or the Tools workspace.
Resize the canvas
On the Photoshop on iPhone homescreen, select Create new and browse for a photo.
Select Size , then adjust the drag handles to resize the canvas.
Use the resize presets to customize the canvas for different social platforms.
Select the checkmark to commit the change.