How to avoid double extentions when bulk exporting images

[narfwin]

I have to crop a bunch of images to a specific size for a website I'm working on, and I'm using the method of bringing everything into affinity photo through a stack, and it works well. The issue arises when I'm exporting. The layers always have the file extension in them, so when I export the images it ends up being {filename}.jpg.jpg. 

This doesn't break the file, but it's far from a best practice and I don't know what would happen if I tried to export it as something other than the same file type as the original, so I was wondering if there is a way for me to avoid this from happening

[walt.farrell]

It's clumsy, but perhaps you could edit the layer names before you do the Export operation?

[narfwin]

I mean obviously yes, but that's kind of what I want to avoid doing. When I'm cropping 50 images, I don't want to go through and remove the extra ".jpg" from each one.

[David in Яuislip]

I think it's easiest to let Photo do its stuff and clean up afterwards
The attached Powershell script renames as follows:

Originals
123.jpg.png
PlaceURL.jpeg.png
sample.jxl.png
SigFigs.tiff.png
SigFigs2.svg.png
SigFigs2.tif.png
ToneMap.jpg.png

Processed
123.png
PlaceURL.png
sample.png
SigFigs.png
SigFigs2.png
SigFigs2.tif.png
ToneMap.png

There may be a problem running this as it's from the internet and unsigned, if so I would open it in a text editor, copy contents to a new document and save as a ps1 file from there

DelDupExtns.ps1

[thomaso]

If you don't want to modify the initial file names isn't it possible to "Save" the cropped images – instead of "Export"?
(which would overwrite the initial files / may require copies for the bulk cropping)