Adobe Help Resources
You can access complete documentation for your Adobe software in a variety of ways: as a Help system that is installed on your computer, in this online community help system, and as a PDF file.
In-product and online community Help
In-product Help provides access to all documentation and instructional content available at the time the product ships, and is available through the Help menu in your Adobe product.
The moderated, online Lightroom Community Help System (beta) includes all content that ships with Lightroom, plus updates and links to additional instructional content available on the web. Customers who log in using their Adobe.com account can add links to content, comment on links that other customers have posted, and comment on Adobe documentation.
Think of Help, both in the product and on the web, as a hub for accessing additional content and communities of users. The most complete and up-to-date version of Help is always on the web.
PDF documentation
The complete in-product Help documentation is generally available as a PDF that has been optimized for printing. Other documents, such as installation guides and white papers, may also be provided as PDFs.
All PDF documentation is available through the Adobe Help Resource Center, at www.adobe.com/go/support/documentation. In most cases, PDF documentation is also available on the product DVD.
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