Graphics - Editors (11)

IrfanView is a viewer for a wide variety of image, audio and video formats. The program includes batch processing, creation of panoramic images, edition of multi-page TIFF files, lossless JPEG rotate/crop and effects such as sharpen and blur. Other tools such as screen capture, scanner, slideshow, plugin support and ability to capture icons from EXE or DLL.

Alternatively, IrfanView Portable is also available and updates drive letters and handles registry keys.

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.

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.

BatchBlitz is a batch image processor with an included photo edit program. It allows you to add a watermarks, filter source files, rename/convert images, resize/rotate, automatically apply color corrections and more. An instant preview gives you a look at effects before executing. Additionally, the program supports regular expressions for filtering files to be processed and for the renaming of files. A wizard can categorize files based on metadata (EXIF or IPTC tags).

While the editor program (SunlitGreen Photo Editor) is separate from the batch program, it's included in the application folder or can be launched from within BatchBlitz.