Portable gnuThumbNailer

Image manipulation is a common practice amongst computer enthusiasts, be it to enhance a selfie, or to use pictures in commercial domains of activity. Even uploading photos on some websites can have specific requirements, and Portable gnuThumbNailer wants to let you process more pictures to create their thumbnails, and a bit more.

Just as the name suggests, there’s no need to go through a setup process, so you can take the application with you. However, it’s built on the Java Environment Platform so you need to make sure that the computer you’re running it on meets the specific demands.

The interface only takes a little of your time with accommodation. This is because the main window is only fitted with a few buttons, btu a lot of thorough descriptions to make sure you don’t get stuck along the way. Visual support is also there to help in this regard.

After you get to select an entire directory with pictures you want to turn into thumbnails, three related options become available. As such, you can have all pictures exported at a custom size specification, keeping the aspect ratio, or both, but filling in extra spaces with a color tone.

The end result heavily depends on your choice, so carefully read the description and analyze the example images to figure out what suits you best. When you made up your mind, a new window is brought up with some quality settings.

An output folder needs to be specified, with the system pictures folder being used by default. Format only lets you choose from PNG or JPG, with adjustable quality. Moreover, you can set a custom resolution, portion to grab in case cropping needs to be done, as well as a built-in tool to add a watermark.

Taking everything into consideration, we can say that Portable gnuThumbNailer is not only an application with the purpose of creating thumbnails, being packed with various other tools to change quality of pictures, convert them, crop, or even make sure nobody steals your creations by adding a watermark.