The program lets you specify the size and create copies of JPG, PNG, BMP, or GIF images.
The way this application works is simple: just open the program and select the folder where the images are found. Then, add the name you want to include after the file name ('_thumbnail' appears by default). Finally, choose the size and click 'Convert.'
Massive Image Resizer is very useful for sending pictures via email, since the exported files are not very big. The files you create can also be uploaded to websites much more quickly. You can even use these customizable thumbnail images for laying out a document or website.