Remove Metadata from PDF in .NET SDK

Delete a metadata from a PDF document using Aspose.PDF Cloud .NET API

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Aspose.PDF Cloud SDK for .NET

Overview

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    How to Delete Metadata in PDF Document using Cloud .NET SDK

    In order to remove 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 remove Metadata via .NET SDK

    Aspose.PDF Cloud developers can easily load & delete 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. Delete all properties using DeleteProperty
    5. Download the result if needed
     

    This sample code shows removing Metadata in PDF documents

    
    public static void DeleteMetadata()
    {
        const string localPdfFileName = @"C:\Samples\sample.pdf";
        const string storageFileName = "sample.pdf";
        const string localFolder = @"C:\Samples";
        const string resultFileName = "output_del_metadata.pdf";
        const string storageTempFolder = "YourTempFolder";
        const string propertyName = "xmp:ArchiveDate";
    
        // 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 != storageFileName))
        {
            using var file = File.OpenRead(localPdfFileName);
            var uploadResult = pdfApi.UploadFile(Path.Combine(storageTempFolder, storageFileName), file);
            Console.WriteLine(uploadResult.Uploaded[0]);
        }
        var response = pdfApi.GetDocumentProperty(storageFileName, propertyName, folder: storageTempFolder);
        if (response.DocumentProperty.Value != null && !response.DocumentProperty.Value.StartsWith("Aspose"))
        {
            var responseSet = pdfApi.DeleteProperty(storageFileName, propertyName, folder: storageTempFolder);
            Console.WriteLine(responseSet.Status);
    
            using Stream downloadStream = pdfApi.DownloadFile(Path.Combine(storageTempFolder, storageFileName));
            using FileStream localStream = File.Create(Path.Combine(localFolder, resultFileName));
            downloadStream.CopyTo(localStream);
            Console.WriteLine("DeleteMetadata(): new property successfully added to document '{0}' file.", resultFileName);
        }
    }