Photoshop Automation Questions

This is a huge help! Thank you, I will try this process.

There are many unknowns (are all backgroounds pure white or just near white, are some transparent, do you need to trim off white space for consistent sizing of products etc).

I am presuming that all backgrounds are pure white and that they are cropped close to the product edges for similar sizing/presentation.

1. Record a two step action, using Fit Image to just under the final desired size + a Canvas Size step to the final desired size using a pure white background extension colour:

2. Using the Image Processor script that ships with Photoshop, save out JPEG copies and process using the action. If you need PNG, then you can use a different script such as Image Processor Pro or Picture Processor, or include the PNG save step in your action and use the Batch command:

The originals:

The resized images saved to a different folder:

Your particular images may require different steps, there are many ways to achieve what you are looking for. As you already have the correct filenames, adjust the images to final size during processing so that the filenames are preserved.

Have a look at Variables and Data Sets

Creating data-driven graphics in Photoshop

I will try to give you a tip on how to batch process images. From what I can understand you need to add white background around product images. This is the same thing as placing images into file with white backgrund, actually final result is the same with no difference because you need flat file for the web. This can be done using Canvas Size in Photoshop.

How to record action depend on dimensions of files that you need to process. If all your files are smaller than 440x600px then simply expand canvas size using action during batch process. Let me guess that some images are JPEG and other PNG. In that case you may need to record and additional steps.