Achieve a consistent border in a batch of product photos

[MarieMeyer]

I am processing a few hundred product shots (shoes, sandals, boots). I'm working in Lightroom and Photoshop. The output will be 1200x1200 px JPEGs, pure white background (no shadows).

I want to size all the subjects so that they are 1000 px in their largest dimension. Can you tell me how to do that? Right now I am just eyeballing a crop until I think it looks like there are around 100 pixels on each side.

[Stephen_A_Marsh]

@MarieMeyer 

Presuming much larger originals, crop them so that you have the approx visual space on the longest edge. Next use the File > Automate > Fit Image command and enter 1000px into both fields. Next resize the canvas with white extension colour to 1200 x 1200 px.

All of this can be recorded into an action for use with the batch command.

Edit: Take a look at the following recent topic for more –

https://community.adobe.com/t5/photoshop-ecosystem-discussions/bring-a-batch-of-photos-into-a-square...

Edit 2: I forgot to mention that depending on the image content, the Select Subject and then Expand Selection commands can be used to automate the Image > Crop command in an action for auto cropping, before the Fit Image and Canvas Size steps.