Read Existing DOCX using Apache POI XWPF API

read-docx-using-apache-poi-xwpf.java

// Path to the input DOCX file
String inputFilePath = "input.docx";
// Path to the output DOCX file after modification
String outputFilePath = "output.docx";

// Open the DOCX file for reading
FileInputStream fis = new FileInputStream(inputFilePath);
XWPFDocument document = new XWPFDocument(fis);

// Read the paragraphs of the DOCX file
for (XWPFParagraph paragraph : document.getParagraphs()) {
    System.out.println("Original Paragraph: " + paragraph.getText());

    // Modify the paragraph content
    if (paragraph.getText().contains("oldWord")) {
for (XWPFRun run : paragraph.getRuns()) {
    String text = run.getText(0);
    if (text != null && text.contains("oldWord")) {
text = text.replace("oldWord", "newWord");
run.setText(text, 0); // Update the run's text
    }
}
    }
}

// Save the updated document to a new file
FileOutputStream fos = new FileOutputStream(outputFilePath);
document.write(fos);

// Close the file streams
fos.close();
fis.close();