You save a lot of time if you resize your photos all at once instead of one at a time. And if you do it in free Irfanview, you can add a watermark to each of them at the same time!…
Resize Transparent PNG Images in Irfanview
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Before you can add a watermark to your photos all at once in a batch, you need to have the right size image as a transparent png image. To do it in Irfanview you need know this trick!…