gThumb Image Viewer: a good tool for patron image resizing

Start of every academic year librarians are busy with admission process of new students. They have to process (resize) user images to upload in Koha. Small image size is ideal for upload to Koha. Big images make your database fat. gThumb Image viewer is a useful tool for resize patron images.

Open Applications > Accessories > Terminal and execute following command,

sudo apt-get install gthumb

gThumb can be open from Applications > Graphics

How process images
Put images in a folder and open gThumb.

Select all images and goto Tools > Image Resize

Give new image size,

It ask for saving file one by one

Lot of other tools are also available for the same purpose.


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