Sometimes your pictures don’t have best optimization settings. In order to make corrections, proper tools are required, such as the Portable RIOT.
Radical Image Optimization Tool is a program that can help you process images with the best compression ratio and quality. This makes it easier to optimize the photos for websites and emails.
The software has a simple interface, holding the before and after images at the center of the frame. You can automatically preview the resulting image, as it updates immediately after each alteration. In order to better see the changes, you can zoom in and zoom out of the picture, display the images at their full size or make the picture fit the frame.
Also, Portable RAID comes with a function called “in-place compare” that enables you to alternatively display the original image over the optimized image to notice all the changes.
The app can save JPEG, GIF and PNG files with a few simple steps. Thus, you can modify the quality and chroma subsampling, as well as the encoding for JPG, choose a color palette and a number of colors for GIFs and PNGs.
Further adjustments can be made in regards of the picture’s brightness, contrast and gamma values. You can also invert the colors.
Furthermore, the app also comes with a function that enables you to keep or remove metadata. The program lets you know which type of metadata is included with the photo (IPTC, Adobe XMP, EXIF profile, ICC profile or comments) and gives you the opportunity to remove it.
Portable RIOT also supports batch conversion. Files can be loaded individually or as entire directories. Additional tasks that can be applied include flipping, rotating, resizing and compressing all the selected pictures.
All in all, Portable RIOT is a nice app that can be of use when you need a fast working tool. One of the major advantages of this program is its flexibility, as it can be run from any portable device, without having to install it on your computer.

What's New in This Release:
· added Help file (not yet complete)
· DLL version: added flags for all JPEG chroma settings
· DLL version: the default chroma for RIOT_SaveToFile is now "medium" instead of "low"
· Batch mode: fixed a bug when using a bat file as external PNG optimizer and @echo off is not on the first line.
· This problem does not occur in normal mode.
· DLL version: fixed some sliders going nuts when pressed during tooltip display
· fixed preview executed twice when asked to resample big images
· Batch settings "Keep original date/time" and "Report file size changes" are now remembered at startup
· if "Report file size changes" is checked and the selected external optimizer is not installed the reported size
· is -100% or ~ -99.9%. Fixed !
· fixed error running same batch twice with external optimizer and "Keep original date/time is checked
· file is now set as modified only if OptimizePNG is successfully executed
· fixed related issues reported in the RIOT forum, with the external PNG optimizer implementation
· fixed a memo...