Resizing an image to smaller size

Resizing images to smaller dimension to satisfy the file size or height/width requirements is something we have faced multiple times. Most of the online tools which I previously used were full of advertisments, and even required to login which is something I hated a lot. Today I learned to do this tedious job with python and it's pretty easy also.
Library used: Pillow
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import os, sys
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from PIL import Image
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​
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size = (720, 720)
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​
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for infile in sys.argv[1:]:
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    outfile = os.path.splitext(infile)[0] + f"{size[0]}.jpg"
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    if infile != outfile:
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        try:
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            with Image.open(infile) as im:
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                im.thumbnail(size)
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                im.save(outfile, "JPEG")
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        except OSError:
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            print("cannot create thumbnail for", infile)
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Save file as resize.py and run the script with:
python3 resize.py image.jpg
Thanks to Jishnu and Rajeesh, I learned there is another tool called ImageMagick. It can also resize images, along with a ton more other cool stuff.
Try image magic, I think it is built into most distros (if not, easy to install via system package manager) and supports more than 200 formats. Easy to use as well.— Jishnu (@jishnu7) July 20, 2021​
To Install ImageMagick in your debian based distro:
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sudo apt install imagemagick
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To resize images with height, width use the option:
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convert -resize 300x720 image.jpg resized_image.jpg
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You can resize also based on the quality as follows:
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convert -quality 50 image.jpg resized_image.jpg
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