Work with Metadata in PDF in .NET SDK

Manipulate Metadata in PDF Document using server-side .NET API.

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Aspose.PDF Cloud SDK for .NET

Overview

    GitHub Learn Buy

    Most popular actions with Metadata in .NET

    Add Metadata to PDF

    Get Metadata from PDF

    Delete Metadata from PDF

    Updfate Metadata in PDF

    How to work with Metadata via Cloud .NET SDK

    In order to work with Metadata via Cloud .NET SDK , we’ll use Aspose.PDF Cloud .NET SDK This Cloud SDK allows you to easily build cloud-based PDF creator, editor & converter apps in C#, ASP.NET, or other .NET languages for various cloud platforms. Open NuGet package manager, search for Aspose.PDF Cloud and install. You may also use the following command from the Package Manager Console: PM> Install-Package Aspose.Pdf-Cloud

    Steps to create a Metadata via .NET SDK

    Aspose.PDF Cloud developers can easily load & create metadata in PDF in just a few lines of code.

    1. Create a new Configuration object with your Application Secret and Key
    2. Create an object to connect to the Cloud API
    3. Upload your document file
    4. Set desired property using PutSetProperty
    5. Download the result if needed
     

    This sample code shows creating a Metadata in PDF documents

    
    public static void AddMetadata()
    {
        const string localImageFileName = @"C:\Samples\sample.pdf";
        const string storageFileName = "sample.pdf";
        const string localFolder = @"C:\Samples";
        const string resultFileName = "output_add_metadata.pdf";
        const string storageTempFolder = "YourTempFolder";

        // Get your AppSid and AppSecret https://dashboard.aspose.cloud (free registration required).
        var pdfApi = new PdfApi(AppSecret, AppSid);

        var filesOnStorage = pdfApi.GetFilesList(storageTempFolder);
        if (filesOnStorage.Value.All(f => f.Name != "sample.pdf"))
        {
            using var file = File.OpenRead(localImageFileName);
            var uploadResult = pdfApi.UploadFile(Path.Combine(storageTempFolder, storageFileName), file);
            Console.WriteLine(uploadResult.Uploaded[0]);
        }
        var response = pdfApi.PutSetProperty(storageFileName, "xmp:ArchiveDate",
            DateTime.Today.ToString(CultureInfo.InvariantCulture), folder: storageTempFolder);
        Console.WriteLine(response.Status);
    
        using Stream downloadStream = pdfApi.DownloadFile(Path.Combine(storageTempFolder, storageFileName));
        using FileStream localStream = File.Create(Path.Combine(localFolder, resultFileName));
        downloadStream.CopyTo(localStream);
        Console.WriteLine("AddMetadata(): new property successfully added to document '{0}' file.", resultFileName);
    }