There is an abundance of (free) software available that lets you use photos and other digital image editing. But when you are really efficient images in large quantities want to customize, such as adding a watermark, then you have a specialized program such as the free Image Tuner is required.
With Image Tuner you can view images in batches to edit. So you can change the size, image rename, convert, and watermarked with an uncluttered user interface. It has very few possible settings, but this makes the program very, very clean, fast, and easy to understand.
Even professional photographers can use Image Tuner from the feet, it supports also RAW files as the RAW, CRW and CR2 file formats.
The software is only free for personal uses. For commercial use you must apply a license to purchase.
Image Tuner has the following features:
Image Tuner screenshots
You can free download Image Tuner and safe install the latest trial or new full version for Windows 10 (x32, 64 bit) from the official site.