// This code example demonstrates how to set the basic information of a PDF document.
// Open source document
PdfFileInfo fileInfo = new PdfFileInfo("D:\\Files\\PDF\\sample.pdf");

// Set PDF information
fileInfo.setAuthor("Aspose");
fileInfo.setTitle("Editing Metadata");
fileInfo.setKeywords("Aspose.Pdf, DOM, API");
fileInfo.setSubject("PDF Information");
fileInfo.setCreator("Aspose");

// Save updated file
fileInfo.saveNewInfo("D:\\Files\\PDF\\Updated_Info_output.pdf");