Hi @Yaswanth Manda,

You can merge two Word documents using Apache POI (XWPFDocument), assuming you have the base64 encoded content of both documents you may try the below code snippet.

// Decode the base64 strings to byte arrays byte[] doc1Bytes = java.util.Base64.getDecoder().decode(base64Doc1); byte[] doc2Bytes = java.util.Base64.getDecoder().decode(base64Doc2); try{     // Load the documents into XWPFDocument objects     org.apache.poi.xwpf.usermodel.XWPFDocument doc1 = new org.apache.poi.xwpf.usermodel.XWPFDocument(new java.io.ByteArrayInputStream(doc1Bytes));     org.apache.poi.xwpf.usermodel.XWPFDocument doc2 = new org.apache.poi.xwpf.usermodel.XWPFDocument(new java.io.ByteArrayInputStream(doc2Bytes));

    // Get paragraphs of the second document     java.util.List<org.apache.poi.xwpf.usermodel.XWPFParagraph> paragraphs = doc2.getParagraphs();

    // Iterate through paragraphs of the second document and add them to the first document     for (org.apache.poi.xwpf.usermodel.XWPFParagraph para : paragraphs) {             doc1.createParagraph().createRun().setText(para.getText());     }

    // Write the merged document to a file or perform any other operations you need     java.io.FileOutputStream fos = new java.io.FileOutputStream("merged_document.docx");     doc1.write(fos);     fos.close(); } catch (java.io.IOException e) {             oLog.infoForced("Java IO Exception"); }