Is there a way to reduce the image size for all the images you have open in Paint.Net in one set of actions or do you have to do each image one by one?
22 Answers
try "Paint.NET Bulk Image Processor":
4PDNBulkUpdater is a plug-in for Paint.NET that allows you to efficiently perform operations such as resizing and converting multiple images at the same time. The plug-in contains both an integrated UI and a command line tool.
There's a fork of "Paint.NET Bulk Image Processor" for Paint.NET 4
Bulk Actions plugin for Paint.NET
4