Introduction

ExifLibrary is a .NET Standard library for extracting image metadata.

Installation

If you are using NuGet search for ExifLibNet in the NuGet Package Manager or install the assembly from the package manager console with:

PM> Install-Package ExifLibNet

Quick Start

To read an image file and extract metadata:

var file = ImageFile.FromFile("path_to_image");

// the type of the ISO speed rating tag value is unsigned short
// see documentation for tag data types
var isoTag = file.Properties.Get<ExifUShort>(ExifTag.ISOSpeedRatings);

// the flash tag's value is an enum
var flashTag = data.Properties.Get<ExifEnumProperty<Flash>>(ExifTag.Flash);

// GPS latitude is a custom type with three rational values
// representing degrees/minutes/seconds of the latitude 
var latTag = data.Properties.Get<GPSLatitudeLongitude>(ExifTag.GPSLatitude);

To add metadata:

var file = ImageFile.FromFile("path_to_image");
// note the explicit cast to ushort
file.Properties.Set(ExifTag.ISOSpeedRatings, <ushort>200);

To save the image with metadata:

file.Save("path_to_image");