To force InDesign to constrain proportions when applying X and Y Scale % values in the Control panel, press Ctrl+Enter/Command+Enter. This way, you can leave both chains “broken” and only constrain proportions when you mean to via the keyboard shortcut.
Note: If you try the same thing with the W and H fields, it will work but it will also open the Quick Apply panel. Press Esc to close the panel.
This article was last modified on February 23, 2026
This article was first published on July 9, 2019
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