Spire.Doc for Java supports embedding an external file (Word, Excel, PowerPoint, PDF, picture, video, etc.) in Word documents as an OLE object. This article gives you an example of how to insert a PDF file into a Word document.
import com.spire.doc.Document; import com.spire.doc.FileFormat; import com.spire.doc.Section; import com.spire.doc.documents.OleObjectType; import com.spire.doc.documents.Paragraph; import com.spire.doc.fields.DocOleObject; import com.spire.doc.fields.DocPicture; public class InsertOLE { public static void main(String[] args) { //Create a Document object and load a Word document Document doc = new Document(); doc.loadFromFile("C:\\Users\\Administrator\\Desktop\\source.docx"); //Get the last section Section section = doc.getLastSection(); //Add a paragraph Paragraph par = section.addParagraph(); //Load an image which will be inserted to Word document representing the embedded file DocPicture pdfIcon = new DocPicture(doc); pdfIcon.loadImage("C:\\Users\\Administrator\\Desktop\\pdf-icon.jpg"); //Insert a PDF file to the Word document as an OLE object par.appendOleObject("C:\\Users\\Administrator\\Desktop\\report.pdf", pdfIcon, OleObjectType.Adobe_Acrobat_Document); //Save to another file doc.saveToFile("EmbedDocument.docx", FileFormat.Docx_2013); } }