Yes, you can reuse DITA content across different projects, and it’s one of the significant advantages of using the DITA framework. DITA is designed at its core to support content reuse, making it easier to manage and maintain content across multiple projects. DITA facilitates content reuse by providing:

• Modular Content Creation: DITA encourages the creation of content in a modular fashion. Content is organized into topics, which are self-contained units of information. Not being tied to any specific context, these topics can be reused across different projects.
• Content Referencing: DITA provides mechanisms like conref (Content Reference) and keyref (Key Reference) that allow easy reference and content reuse easily. Entire topics, sections, or specific elements can be referenced from one project in another, ensuring consistency and reducing duplication.
• Version Control: When a topic in one project is updated, those changes can be propagated to all the projects that reference that topic. This ensures that the most up-to-date information is maintained across all projects.
• Localization: DITA supports the efficient management of content for different languages. Content can be created in one language and then reused and translated for other languages, saving time and effort.
• Cost Savings and Efficiency: By not requiring investing as much time and resources in creating and maintaining content for each project separately, DITA provides notable cost savings and a more efficient workflow.
• Flexibility: DITA’s flexibility allows the customization and adaptation of content modules to specific project requirements while still benefiting from the reuse of the core information.