What’s New

Adobe InDesign 21.3

21.3WindowsmacOS

March 2026 (version 21.3)

Added
  • You can show or hide the Alt Text badge icon ( View > Extras > Hide Alt Text Badge or Show Alt Text Badge ). Hiding the badge does not remove alt text and does not affect accessible exports.
Fixed
  • [macOS only] InDesign file becomes uneditable after using Share for InCopy on the web and then saving it back locally on macOS.
  • [macOS only] Paper swatch applied to text has incorrect overprint settings.
  • [macOS only] InDesign hangs at launch if the PDF preset folder lacks read permissions.
  • [macOS only] Locate Object button is now available in the Layers panel .
  • Provide an option to show/hide Alt Text adornment icon.
  • Alt text added in the Accessibility section of Hyperlinks panel disappears when the file is saved as IDML.
  • Incorrect Alt Text generation for some images.
  • The UXP WebView Support component should not be packaged or installed with InDesign Server.
  • InDesign Server crashes when using the Adobe World-Ready Single-line Composer while interacting with multi-column text frames.
  • InDesign intermittently crashes when opening or closing documents from a network location under low-memory conditions.
  • InDesign intermittently crashes while opening the document.
  • InDesign intermittently crashes while adding pages to the document.
  • InDesign intermittently crashes while performing copy/paste of text containing hyperlinks.
  • InDesign intermittently crashes during image placement.
  • Documentation missing from InDesign Server installation directory.
  • [Flex Layout] Elements added to the Article panel appear in incorrect sequence.
  • [Flex Layout] Buttons and Object States cannot be applied directly to Flex child elements.
  • IDML files with long indexes take excessive time to open.
  • Page size changes in Alternate Layout after reopening the IDML file.
  • Master page names are changed after IDML conversion.
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