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Replace a Word in Word with NET REST API

This article explains how to Aspose.words and Java can be used together to replace a specific word inside a DOCX document via the Aspose.Words Cloud REST API. By making a few API calls you can modify the text in a Word file stored in the cloud, with options to control case‑sensitivity, whole‑word matching, and regular‑expression usage.

Prerequisite

Steps to change a word in a Word document with Java REST API

  1. Instantiate the WordsApi object using your client ID and client secret.
  2. Load the source Word file into a memory stream.
  3. Create a ReplaceTextParameters instance and set the old text, new text, and the required flags (match case, match whole word, use regex).
  4. Define the output file name and invoke the ReplaceTextOnline() method with the prepared request.
  5. Retrieve the resulting file from the API response and save it locally.

The steps above outline the complete workflow for replacing words in a Word DOCX using the Java REST API. Begin by loading the document into a stream, configure the ReplaceTextParameters with the text you want to replace and the desired matching options, then call ReplaceTextOnline() to perform the operation on the server. Finally, write the returned stream to a file on your disk.

Code to replace a word in a Word DOCX with Java REST API

The sample demonstrates how to replace a word in a Word document using the Java Cloud SDK. The DestFileName property specifies the name of the resulting file, which you can obtain from the API response via the TryGetValue() method. Create a file stream with File.create (or similar) and write the returned bytes to store the updated document locally.

For information on modifying other document properties, see the related article: Change Properties of Word Document with Java REST API.

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