Add remove EXIF operation

src/core/operations/Image.js

@@ -1,4 +1,5 @@
 import * as ExifParser from "exif-parser";
+import * as Piexifjs from "piexifjs";
 import Utils from "../Utils.js";
 import FileType from "./FileType.js";
 
@@ -43,6 +44,31 @@ const Image = {
         }
     },
 
+    /**
+     * Remove EXIF operation.
+     *
+     * Removes EXIF data from a byteArray, representing a JPG.
+     *
+     * @author David Moodie [davidmoodie12@gmail.com]
+     * @param {byteArray} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    removeEXIF(input, args) {
+        try {
+            // Piexifjs seems to work best with base64 input
+            const base64 = "data:image/jpeg;base64," + Utils.toBase64(input);
+            const newImageB64 = Piexifjs.remove(base64);
+
+            // Convert the base64 back to byteArray
+            const newImage = Utils.fromBase64(newImageB64.split(",")[1], null, "byteArray");
+            return newImage;
+        } catch (err) {
+            // Simply return input if no EXIF data is found
+            if (err == "Exif not found.") return input;
+            throw "Could not remove EXIF data from image: " + err;
+        }
+    },
 
     /**
      * @constant