GroupDocs.Metadata 20.4.0

There is a newer version of this package available.
See the version list below for details.
Install-Package GroupDocs.Metadata -Version 20.4.0
dotnet add package GroupDocs.Metadata --version 20.4.0
<PackageReference Include="GroupDocs.Metadata" Version="20.4.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add GroupDocs.Metadata --version 20.4.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#r "nuget: GroupDocs.Metadata, 20.4.0"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install GroupDocs.Metadata as a Cake Addin
#addin nuget:?package=GroupDocs.Metadata&version=20.4.0

// Install GroupDocs.Metadata as a Cake Tool
#tool nuget:?package=GroupDocs.Metadata&version=20.4.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

.NET API for Metadata Processing

This .NET API can be consumed to integrate metadata viewer, editor, reader, writer, and remover operations within your .NET apps.

Document Metadata Processing Features

  • Read, update and remove metadata in a variety of formats.
  • Search, update and remove particular metadata properties as per specified predicate.
  • Use tags to easily manipulate most common metadata properties in a unified manner.
  • Work with password-protected documents.
  • Extract information about hidden document pages, digital signatures, user comments, revisions, etc.
  • Supports many popular metadata standards, such as, IPTC, XMP, EXIF, Image Resources.
  • Manipulate native metadata properties in various formats.
  • Extract technical information from images, audio and video files.
  • Calculate common document statistics (word count, character count, etc.).
  • Detect the format and MIME type of a file by its internal structure.
  • Work with various audio tags (ID3, Lyrics, APE).
  • Load file from a local disk or a stream.
  • Load a file of a specific format or load a password protected file.
  • Traverse a whole metadata tree.
  • Work with the APEv2, ID3v1, ID3v2, Lyrics & other tags of MP3 metadata.

New Features in Version 20.4

  • Ability to work with EXIF metadata in PNG images.
  • Ability to work with XMP metadata in MP3 files.

Enhancements in Version 20.4

  • Ability to parse most common EXIF Makernote metadata formats using the new API.

For the detailed notes, please visit GroupDocs.Metadata for .NET 20.4 Release Notes.

Read & Write Metadata Formats

Microsoft Word: DOC, DOT, DOCX, DOCM, DOTX Microsoft Excel: XLSX, XLSM, XLTM, XLS Microsoft PowerPoint: PPTX, PPTM, PPSX, PPSM, POTX, POTM, PPT, PPS Microsoft Visio: VSD, VDX, VSDX, VSS, VSX Microsoft OneNote: ONE Microsoft Project: MPP OpenOffice: ODS, ODT, OTF, OTC Audio: MP3, WAV Video: AVI, MOV / QT, ASF, FLV Email: EML, MSG, VCF, VCR Image: BMP, GIF, JPG, JPEG, JPE, JP2, PNG, TIFF, DICOM, WEBP Archive: ZIP Font: TTF, TTC Metafile: EMF, WMF Adobe Photoshop: PSD AutoCAD: DWG, DXF Portable: PDF eBook: EPUB, DJVU, DJV Other: TORRENT

Platform Independence

GroupDocs.Metadata for .NET does not require any external software or third party tool to be installed. GroupDocs.Metadata for .NET supports any 32-bit or 64-bit operating system where .NET or Mono framework is installed. The other details are as follows:

Microsoft Windows: Microsoft Windows Desktop (x86, x64) (XP & up), Microsoft Windows Server (x86, x64) (2000 & up), Windows Azure Mac OS: Mac OS X Linux: Linux (Ubuntu, OpenSUSE, CentOS and others) Development Environments: Microsoft Visual Studio (2010 & up), Xamarin.Android, Xamarin.IOS, Xamarin.Mac, MonoDevelop 2.4 and later. Supported Frameworks: GroupDocs.Conversion for .NET supports .NET and Mono frameworks.

Getting Started with GroupDocs.Metadata for .NET

Are you ready to give GroupDocs.Metadata for .NET a try? Simply execute Install-Package GroupDocs.Metadata from Package Manager Console in Visual Studio to fetch & reference GroupDocs.Metadata assembly in your project. If you already have GroupDocs.Metadata for .Net and want to upgrade it, please execute Update-Package GroupDocs.Metadata to get the latest version.

Please check the GitHub Repository for other common usage scenarios.

Use C# to Remove All Metadata Properties from a File

using (Metadata metadata = new Metadata(Constants.InputPdf))
    // Remove detected metadata packages
    var affected = metadata.Sanitize();
    Console.WriteLine("Properties removed: {0}", affected);


Extract Metadata from Files via C# Code

foreach (string file in Directory.GetFiles(Constants.InputPath))
    using (Metadata metadata = new Metadata(file))
        if (metadata.FileFormat != FileFormat.Unknown && !metadata.GetDocumentInfo().IsEncrypted)

            // fetch all metadata properties that fall into a particular category
            var properties = metadata.FindProperties(p => p.Tags.Any(t => t.Category == Tags.Content));
            Console.WriteLine("The metadata properties describing some characteristics of the file content: title, keywords, language, etc.");
            foreach (var property in properties)
                Console.WriteLine("{0} = {1}", property.Name, property.Value);

            // fetch all properties having a specific type and value
            var year = DateTime.Today.Year;
            properties = metadata.FindProperties(p => p.Value.Type == MetadataPropertyType.DateTime &&
                                                     p.Value.ToStruct(DateTime.MinValue).Year == year);

            Console.WriteLine("All datetime properties with the year value equal to the current year");
            foreach (var property in properties)
                Console.WriteLine("{0} = {1}", property.Name, property.Value);

Product Page | Documentation | Live Demo | API Reference | Code Samples | Blog | Free Support | Temporary License

There are no supported framework assets in this package.

Learn more about Target Frameworks and .NET Standard.

NuGet packages (1)

Showing the top 1 NuGet packages that depend on GroupDocs.Metadata:

Package Downloads

Conholdate.Total for .NET is a complete package to work with a large number of file formats from Microsoft Word, Excel, PowerPoint, Outlook, Project, Visio, Adobe Acrobat, Illustrator, Photoshop, AutoCAD, OpenOffice and many more. Conholdate.Total for .NET allows you to use any API released under Aspose and GroupDocs for .NET in order to create, convert, read, edit, update and print popular document formats. Moreover, you may view, annotate, watermark, assemble, classify, search, redact, parse, merge and compare documents without needing to install the native applications. It helps you in file format manipulation and document automation via simple API. Conholdate.Total for .NET also includes specialized APIs to read and create barcodes, extract text from images using OCR as well as extract human marked data from questioners, surveys, quizzes, MCQ papers and feedback forms.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last updated
21.8.0 2,661 8/9/2021
21.6.0 1,361 6/11/2021
21.5.0 676 5/13/2021
21.4.0 640 4/1/2021
21.2.0 2,174 2/4/2021
21.1.0 600 1/20/2021
20.11.0 1,633 11/2/2020
20.10.0 713 9/30/2020
20.9.0 944 9/4/2020
20.8.0 864 8/11/2020
20.7.0 1,983 7/3/2020
20.6.0 1,134 6/3/2020
20.5.0 1,073 5/6/2020
20.4.0 687 4/2/2020
20.3.0 746 3/13/2020
20.1.0 1,627 1/23/2020
19.11.0 1,263 11/29/2019
19.5.1 1,429 6/14/2019
19.5.0 429 5/29/2019
19.4.0 506 4/4/2019
19.3.0 403 3/7/2019
19.2.0 503 2/7/2019
19.1.0 540 1/10/2019
18.12.0 570 12/5/2018
18.11.0 593 11/1/2018
18.10.0 633 10/5/2018
18.9.0 657 9/4/2018
18.8.0 653 8/3/2018
18.7.0 603 7/2/2018
18.6.0 609 6/4/2018
18.5.0 732 5/10/2018
18.4.0 755 4/12/2018
18.2.0 774 2/7/2018
18.1.0 744 1/12/2018
17.12.0 764 12/12/2017
17.11.0 760 11/6/2017
17.10.2 816 10/24/2017
17.10.1 695 10/10/2017
17.10.0 747 10/3/2017