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muhammadsabir on 06/15/16

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Last Edited at 06/15/16 08:21pm

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Remove GPS location from images or photos (EXIF Metadata Removal)

/ Published in: C#

The code uses [GroupDocs.Metadata for .NET](http://www.groupdocs.com/dot-net/document-metadata-library) API for removing GPS location from images / photos.
-Download API from [Nuget](https://www.nuget.org/packages/groupdocs-metadata-dotnet/).
-Download complete code examples from [Github](https://github.com/groupdocs-metadata/GroupDocs.Metadata-for-.NET/blob/master/Examples/).

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using GroupDocs.Metadata.Tools;
using GroupDocs.Metadata.Standards.Exif;
using System.IO;

namespace GroupDocs.Metadata.Examples.Utilities.CSharp
{
    //ExStart:PhotoCleaner
    public class PhotoCleaner
    {
        // absolute path to the GroupDocs.Metadata license file.
        private const string LicensePath = @"GroupDocs.Metadata.lic";

// absolute path to the photos directory.
        public string CleanerPath { get; set; }

static PhotoCleaner()
        {
            /* set product license 
             * uncomment following function if you have product license
             * */
            //SetInternalLicense();
        }

public PhotoCleaner(string cleanerPath)
        {
            // check if directory exists
            if (!Directory.Exists(Common.MapSourceFilePath( cleanerPath)))
            {
                throw new DirectoryNotFoundException("Directory not found: " + cleanerPath);
            }
            // set property
            this.CleanerPath = cleanerPath;
        }
        /// <summary>
        /// Applies the product license
        /// </summary>
        private static void SetInternalLicense()
        { 
            License license = new License();
            license.SetLicense(LicensePath);
        }
        /// <summary>
        /// Removes GPS data and updates the image files in a directory
        /// </summary>
        public void RemoveExifLocation()
        {
            // Map directory in source folder
            string sourceDirectoryPath = Common.MapSourceFilePath(this.CleanerPath);

// get array of file in specific directory
            string[] files = Directory.GetFiles(sourceDirectoryPath);

foreach (string path in files)
            {
                // get EXIF data if exists
                ExifMetadata exifMetadata = (ExifMetadata)MetadataUtility.ExtractSpecificMetadata(path, MetadataType.EXIF);

if (exifMetadata != null)
                {
                    ExifInfo exifInfo = exifMetadata.Data;

if (exifInfo.GPSData != null)
                    {
                        // set altitude, latitude and longitude to null values
                        exifInfo.GPSData.Altitude = null;
                        exifInfo.GPSData.Latitude = null;
                        exifInfo.GPSData.LatitudeRef = null;
                        exifInfo.GPSData.Longitude = null;
                        exifInfo.GPSData.LongitudeRef = null;
                    }

// and update file
                    MetadataUtility.UpdateMetadata(path, exifMetadata);
                }
            }
            Console.WriteLine("Press any key to exit.");
        }
    }
    //ExEnd:PhotoCleaner
}

URL: https://github.com/groupdocs-metadata/GroupDocs.Metadata-for-.NET/blob/master/Examples/GroupDocs.Metadata.Examples.CSharp/Utilities/PhotoCleaner.cs

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