They're passed through whatever image software you've CB set to use within CB > Configuration > Images. Typically this is GD2 by default. Images will of course lose clarity when they are resized to be smaller. If you're handling a lot of large photo uploads I recommend ensuring you're using ImageMagick instead of GD2.
Kyle (Krileon) Community Builder Team Member Before posting on forums:
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ImageMagick needs to be setup server side. Contact your host if unsure how. Once setup correctly it should be available to select. As you've provided no examples I've no idea how bad the compression issue is.
Kyle (Krileon) Community Builder Team Member Before posting on forums:
Read FAQ thoroughly
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Read our Documentation
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Search the forums CB links:
Documentation
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Localization
-
CB Quickstart
-
CB Paid Subscriptions
-
Add-Ons
-
Forge
-- If you are a Professional, Developer, or CB Paid Subscriptions subscriber and have a support issue please always post in your respective support forums for best results!
-- If I've missed your support post with a delay of 3 days or greater and are a Professional, Developer, or CBSubs subscriber please
send me a private message
with your thread and will reply when possible!
-- Please note I am available Monday - Friday from 8:00 AM CST to 4:00 PM CST. I am away on weekends (Saturday and Sunday) and if I've missed your post on or before a weekend after business hours please wait for the next following business day (Monday) and will get to your issue as soon as possible, thank you.
-- My role here is to provide guidance and assistance. I cannot provide custom code for each custom requirement. Please do not inquire me about custom development.
krileon
