Set PDF File Information

PdfFileInfo class allows you to set file specific information of a PDF file. You need to create an object of PdfFileInfo class and then set different file specific properties like Author, Title, Keyword, and Creator etc. Finally, save the updated PDF file using SaveNewInfo method of the PdfFileInfo object.

The following code snippet shows you how to set PDF file information.

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void SetPdfInfo()
{
    // Define the directory for input and output files
    var dataDir = RunExamples.GetDataDir_AsposePdf();

    // Create PdfFileInfo object to work with PDF metadata
    using (var fileInfo = new Aspose.Pdf.Facades.PdfFileInfo(dataDir + "sample.pdf"))
    {
        // Set PDF information
        fileInfo.Author = "Aspose";
        fileInfo.Title = "Hello World!";
        fileInfo.Keywords = "Peace and Development";
        fileInfo.Creator = "Aspose";
        
        // Save the PDF with updated information
        fileInfo.SaveNewInfo(dataDir + "SetFileInfo_out.pdf");
    }
}

Set Meta Info

SetMetaInfo method allows you to add any information. In our example, we added a field. Check next code snippet:

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void SetMetaInfo()
{
    // Define the directory for input and output files
    var dataDir = RunExamples.GetDataDir_AsposePdf();

    // Create an instance of the PdfFileInfo object
    using (var fileInfo = new Aspose.Pdf.Facades.PdfFileInfo(dataDir + "sample.pdf"))
    {
        // Set a new custom attribute as meta info
        fileInfo.SetMetaInfo("Reviewer", "Aspose.PDF user");

        // Save the updated file
        fileInfo.SaveNewInfo(dataDir + "SetMetaInfo_out.pdf");
    }
}