// For complete examples and data files, please go to https://github.com/aspose-words/Aspose.Words-for-.NET.git. Document docA = new Document(); DocumentBuilder builder = new DocumentBuilder(docA); // Insert text to the document start. builder.MoveToDocumentStart(); builder.Write("First Hello World paragraph"); Document docB = new Document(MyDir + "Document.docx"); // Add document B to the and of document A, preserving document B formatting. docA.AppendDocument(docB, ImportFormatMode.KeepSourceFormatting); docA.Save(ArtifactsDir + "HelloWorld.SimpleHelloWorld.pdf");