Whilst uploading images for my Projects and Testimonials sections, I noticed
that the Imagecache-scaled images weren't as high a quality the originals on my
Mac. I did some searching online and found out that, by default, Drupal
resamples uploaded jpgs to 75% of their original quality.
To increase the quality of your images, change the setting in the two following
places:
admin/settings/imageapi/config
admin/settings/image-toolkit
The first one is for ImageAPI. Primarily, this means Imagecache presets. The
second one is for core's image.inc. This is used for resizing profile pictures
in core, and some contrib modules. Once changed, I did have to flush each of the
Imagecache presets (admin/dist/imagecache) for the changes to take effect.
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About me
I'm an Acquia-certified Drupal Triple Expert with 17 years of experience, an open-source software maintainer and Drupal core contributor, public speaker, live streamer, and host of the Beyond Blocks podcast.