Upload & Sell: On
| p.1 #2 · Lightroom: print or export for online printing of specific aspect ratios |
you dont need to make temporary virtual copies.
In the Develop module create your crop and export as jpeg. Remember, LR is non-destructive. The original image is unchanged and you can go back to the Develop module, change the crop, re-export, etc . If you prefer the idea of virtual copies existing at multiple different aspect ratios you can do that, but it is unnecessary.
Is there a downside in using the Print Module? I havent used it for crops, but I think you might have less ability to move the crop, rotate the image, etc.