Mogrify your images … Quick and Easy Batch Photo Resize

When you upload your images to be viewed on the web, its best to reduce the size of the image to fit into a normal browser window and more importantly so that web site is quick and responsive to viewers. If you are working with a lot of images at once, such as for photo album, doing a manual resize for every image can be a hassle. Therefore you need look for a tool that can do batch resizing of your images at once.

I used to use IrfaanView to do batch resize. Now that I’ve completely moved my personal stuff off of Windows, I need a tool that can do the same but on Ubuntu. … In comes Mogrify. Mogrify can do many things on multiple files concurrently. All I care about doing here is resizing my photos, though.

To install mogrify, you need to install imagemagick suite, which mogrify is part of:

sudo apt-get install imagemagick

To resize an image, do:

mogrify -resize 640×640 MyPhoto.jpg

Keep in mind that this command will whipe out the old file a replace it with the new modify image. So make sure you are working on duplicate copies of the images.

You can also the resize in terms of percentage:

mogrify -resize 50% MyPhoto.jpg

To do a batch resize on on all the images in the directory, do:

mogrify -resize 640×640 *.jpg

Once again, use with caution or on duplicates, as the original image is lost.