Summarize a Document

What is this page about?

This page explains how to generate document summaries automatically.

Summarizing documents is a valuable tool for content review, quick insights, or preparing abstracts. Aspose.Words supports document summarization using AI-powered models, making it easier to process long text. This feature, available in the Aspose.Words.AI namespace, integrates advanced generative language models from OpenAI and Google, as well as Claude’s anthropic generative language models. The list of supported models is available in the AiModelType enumeration.

You can specify various options for summarizing document content. Use the Summarize method to generate a summary of your document. You can also set summary length using the SummaryLength property.

With Aspose.Words, implementing document summarization is straightforward. The following code example shows how to summarize a document using GPT-4o model:

Summarizing documents with Aspose.Words saves time and helps you focus on essential information. For more information, check the Aspose.Words.AI API documentation.

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FAQ

1. Q: Which document formats can be summarized with Aspose.Words AI?
   A: Any format that Aspose.Words can load can be summarized, including DOC, DOCX, RTF, HTML, EPUB, and PDF (when loaded as a Word document). The summarization engine works on the internal document model, so the original file type does not matter as long as it is supported by Aspose.Words.

2. Q: What AI models are available for summarization?
   A: The AiModelType enumeration lists all supported models, such as OpenAi_Gpt4o, Google_GeminiPro, and Anthropic_ClaudeInstant. You select a model by setting the Model property of SummarizeOptions before calling Summarize.

3. Q: Do I need a separate license to use the summarization feature?
   A: No additional license is required beyond a regular Aspose.Words license. The AI functionality is included in the Aspose.Words for .NET product, but you must have an active subscription that includes the AI add‑on. Licensing for older versions is retro‑compatible as long as the version supports the AI namespace.

4. Q: How can I control the length of the generated summary?
   A: Use the SummaryLength property of SummarizeOptions. It accepts values from the SummaryLength enumeration (VeryShort, Short, Medium, Long, VeryLong) or a custom integer representing the desired number of sentences. The chosen length influences how much content the model returns.

5. Q: What happens if the document contains no textual content?
   A: The summarization call will return an empty string. You can check the document’s text length beforehand using Document.GetText() and handle the empty‑result case in your code to avoid unnecessary API calls.