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Everything about Uniform Type Identifier

String used for identify objects on Apple subsystems

A Uniform Type Identifier (UTI) is a text string used on software provided by Apple Inc. to uniquely identify a given class or type of item. Apple provides built-in UTIs to identify common system objects – document or image file types, folders and application bundles, streaming data, clipping data, movie data – and allows third party developers to add their own UTIs for application-specific or proprietary uses. Support for UTIs was added in the Mac OS X 10.4 operating system, integrated into the Spotlight desktop search technology, which uses UTIs to categorize documents. One of the primary design goals of UTIs was to eliminate the ambiguities and problems associated with inferring a file's content from its MIME type, filename extension, or type or creator code. Wikipedia →

đź§­ Start here: a 6-step reading path

  1. Read the overview: Uniform Type IdentifierA 5-minute orientation
  2. Pick up a classic book: Intelligence BulletinThe most-reprinted book on the subject
  3. Go sideways: File associationA closely related topic
  4. Go sideways: File formatA closely related topic

đź“– Definitions

No dictionary entry for this exact phrase.

🗂️ The subject at a glance

  1. Background
  2. UTI structure
  3. Third-party UTIs
  4. Looking up a UTI

🏆 Landmark papers (most cited)

📚 Books worth reading

Ranked by number of editions on Open Library, a rough measure of how lasting a book is.

đź”— Related topics