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Django Image Compressor

Django Image Compressor is a tool for optimizing your website's static images for serving in production. Django Image Compressor alters the staticfiles.json manifest generated after running collectstatic by changing the image mapping to the new optimized images located in a directory in STATIC_ROOT.

Installation

pip install django-image-compressor

Getting started

Add to INSTALLED_APPS

INSTALLED_APPS = [
    # some other apps...
    'imagecompressor'
]

Run collectstatic

python manage.py collectstatic

Run compressimages

python manage.py compressimages

Positional arguments

path
The path relative to STATIC_ROOT, or app name, whose images you want compressed.
Optional Arguments
--optimize If present and true, indicates that the encoder should make an extra pass over the image in order to select optimal encoder settings.
--quality QUALITY
 The image quality, on a scale from 1 (worst) to 95 (best).
--progressive If present and true, indicates that this image should be stored as a progressive JPEG file.
--lossless If present and true, instructs the WEBP writer to use lossless compression.

For more information on these options see the Pillow documentation.

Examples

python manage.py compressimages --optimize --progressive --quality 75

Will optimize all JPG, and PNG files in STATIC_ROOT, and make JPGs progressive with quality 75.

python manage.py compressimages polls --progressive

Will make all JPG files in the polls app progressive with Pillow defaults for the other parameters. Again see the Pillow documentation.

python manage.py compressimages

This is the first example in "Getting started". It will not modify the images at all, instead it will rename them and place them in a new directory in STATIC_ROOT.

Settings

IMAGE_COMPRESS_ROOT:This is the name of the directory images will be placed in after running compressimages (Default: 'IMAGES').

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Compress static images from Django with Pillow

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