Code Quality Rank: L2
Programming language: C#
License: GNU General Public License v3.0 or later
Tags: Png     Metadata     Exif     IPTC     XMP     ICC     Photoshop     WebP     BMP     ICO     PCX     JPEG     TIFF     PSD     Photography     QuickTime     MOV     MP4     M4V     Video    
Latest version: v2.4.3

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Build Status MetadataExtractor NuGet version MetadataExtractor on fuget.org MetadataExtractor Nuget download count

MetadataExtractor is a straightforward .NET library for reading metadata from image, movie and audio files.


The easiest way to use this library is via its NuGet package.

Either add this to your project file

    <PackageReference Include="MetadataExtractor" Version="2.7.2" />

Or type this in Visual Studio's Package Manager Console:

PM> Install-Package MetadataExtractor

Or search for MetadataExtractor in the Visual Studio NuGet Package Manager.


IEnumerable<Directory> directories = ImageMetadataReader.ReadMetadata(imagePath);

The resulting directories sequence holds potentially many different directories of metadata, depending upon the input image.

To print out all values from all directories:

foreach (var directory in directories)
foreach (var tag in directory.Tags)
    Console.WriteLine($"{directory.Name} - {tag.Name} = {tag.Description}");


Exif SubIFD - Exposure Time = 1/60 sec
Exif SubIFD - F-Number = f/8.0
Exif IFD0 - Model = NIKON D70
IPTC - Credit = Drew Noakes
IPTC - City = London

Access a specific value, in this case the Exif DateTime tag:

var subIfdDirectory = directories.OfType<ExifSubIfdDirectory>().FirstOrDefault();
var dateTime = subIfdDirectory?.GetDescription(ExifDirectoryBase.TagDateTime);


The library understands several formats of metadata, many of which may be present in a single image:

It supports various file types.

  • Images

    • BMP
    • EPS
    • GIF
    • HEIF / HEIC
    • ICO
    • JPEG / JFIF
    • Netpbm
    • PCX
    • PNG
    • PSD
    • TGA
    • TIFF / BigTIFF
    • WebP
    • Camera Raw
    • ARW (Sony)
    • CR2 (Canon)
    • NEF (Nikon)
    • ORF (Olympus)
    • RW2 (Panasonic)
    • RWL (Leica)
    • SRW (Samsung)
  • Movies

    • AVCI
    • AVI
    • MOV (QuickTime)
    • MP4
  • Audio

    • WAV
    • MP3

Camera-specific "makernote" data is decoded for cameras manufactured by:

  • Agfa
  • Apple
  • Canon
  • Casio
  • DJI
  • Epson
  • FLIR
  • Fujifilm
  • Kodak
  • Kyocera
  • Leica
  • Minolta
  • Nikon
  • Olympus
  • Panasonic
  • Pentax
  • Reconyx
  • Sanyo
  • Sigma/Foveon
  • Sony

Supported Frameworks

This library targets:

  • .NET Framework 3.5 (net35)
  • .NET Framework 4.5 (net45)
  • .NET Standard 1.3 (netstandard1.3)
  • .NET Standard 2.0 (netstandard2.0)

All target frameworks are provided via the one NuGet package.

net35 and net45 target the full .NET Framework. net45 uses the newer IReadOnlyList<> on some public APIs where net35 uses IList<>. Internally net45 also uses some newer library features for slightly improved performance.

netstandard1.3 implements version 1.3 of the .NET Standard which covers .NET Core, Mono, Xamarin platforms, UWP, and future platforms.

A PCL build was supported until version 1.5.3 which supported Silverlight 5.0, Windows 8.0, Windows Phone 8.1 and Windows Phone Silverlight 8.0. PCL versions did not support file-system metadata due to restricted IO APIs.


Building this repo requires a recent version of Visual Studio 2019. Ensure you have the .NET Core Development Tools workload installed via the Visual Studio Installer.

The library itself, once built, may be consumed from projects in much earlier versions of Visual Studio.

Questions & Feedback

The quickest way to have your questions answered is via Stack Overflow. Check whether your question has already been asked, and if not, ask a new one tagged with both metadata-extractor and .net.

Bugs and feature requests should be provided via the project's issue tracker. Please attach sample images where possible as most issues cannot be investigated without an image.


If you want to get your hands dirty, making a pull request is a great way to enhance the library. In general it's best to create an issue first that captures the problem you want to address. You can discuss your proposed solution in that issue. This gives others a chance to provide feedback before you spend your valuable time working on it.

An easier way to help is to contribute to the sample image file library used for research and testing.


This library is developed by Drew Noakes and contributors.

Thanks are due to the many users who sent in suggestions, bug reports, sample images from their cameras as well as encouragement. Wherever possible, they have been credited in the source code and commit logs.

This library was originally written in Java in 2002. In 2014, Yakov Danilov (for Imazen LLC) converted the code to C# using Sharpen. The code has subsequently been edited to provide a more idiomatic .NET API. Both projects are now developed in unison and aim to be functionally equivalent.

Other languages

  • Java metadata-extractor is the original implementation of this project, from which this .NET version was ported
  • PHP php-metadata-extractor wraps the Java project, making it available to users of PHP

More information about this project is available at: