Custom actions record the things you do in Photoshop, in this case re-sizing.Changing the canvas size will center image within the new dimensions.Click Ok and your automation will begin immediately.'Destination' section, choose a folder where the newly re-sized images should output.'Source' section, choose a folder of images to apply this action to.'Play' section, choose your newly created action.Tell Photoshop which folder of images to apply your re-sizing action to Repeat this, creating a new color action within your action set as desired Change color of shape to desired color / make no background for transparent.Go to Image > Canvas Size and change to 610圆10.While recording your specific action: (with image open) Click the stop icon on the actions panel.Create a new action by clicking the layer icon on the actions panel.

Navigate to the actions panel or Alt+F9.Record yourself resizing the canvas for future automation To accomplish a colored or transparent background with new size dimensions, you'd create an action set (folder icon) and create an action within that set for each color you're looking to batch.

You can do this with actions & the batch automation feature within Photoshop.

Batch edit affinity photo