Graphics - Editors (10)

FastStone Photo Resizer is a batch image converter/resizer that enables users to convert, rename, resize, crop, rotate, change color depth, add text and watermarks to many images at one go. Supports file renaming and a conversion preview is available before processing.

Any set of conversion settings can be saved for future use.

XnConvert is an easy, multi-platform image converter for graphic files, photos and images. It supports more than 500 file formats. You can rotate, crop, resize, edit metadata, add a watermark, change contrast, brightness or gamma, apply filters, masks, effects and many other things.

FreeVimager is a fast media viewer and image editor with full screen and multi-monitor support. Includes various image modification tools (lossless rotate and crop, resize, brightness, contrast, sharpen) and analysis tools. Includes batch processing and CD/DVD slideshow creation, as well as a random setting. Touch screen gesture support for zoom in/out and for next/previous picture. Includes EXIF date / time adjustment, view image location in Google Maps and can edit JPEG, BMP, GIF, TIFF, PNG, PCX and EMF, as well as save to PDF.

Also includes basic screenshot and scanning tools.

RIOT (Radical Image Optimization Tool) presents a before-and-after image compression view that allows you to reduce file size of an image into JPG, PNG, or GIF format. Includes optional metadata removal, batch operations, compression to a target file size, transparency options, and other common editing functions (flip, rotate, zoom, pan). Notable versus similar software in the ability to gradually reduce the available colors one-by-one (7, 8, 9, 10...), not just milestones of 16, 32, 64, etc.

The program is also available as a plugin for XnView, GIMP, or Irfanview (see website).

Functional in Linux using Wine. Many of the official entries here on PortableFreeware have used RIOT for compression. Note that the installer version of this program is considered adware.