diff --git a/src/lib/viewers/BaseViewer.js b/src/lib/viewers/BaseViewer.js
index 7fdd85fef..7d3115321 100644
--- a/src/lib/viewers/BaseViewer.js
+++ b/src/lib/viewers/BaseViewer.js
@@ -952,6 +952,8 @@ class BaseViewer extends EventEmitter {
 
         this.annotator = new this.annotatorConf.CONSTRUCTOR(annotatorOptions);
 
+        this.emit('annotator_create', this.annotator);
+
         if (this.annotatorPromiseResolver) {
             this.annotatorPromiseResolver();
         }
diff --git a/src/lib/viewers/__tests__/BaseViewer-test.js b/src/lib/viewers/__tests__/BaseViewer-test.js
index caef2ed10..48b3d177f 100644
--- a/src/lib/viewers/__tests__/BaseViewer-test.js
+++ b/src/lib/viewers/__tests__/BaseViewer-test.js
@@ -1143,6 +1143,14 @@ describe('lib/viewers/BaseViewer', () => {
             expect(intl.createAnnotatorIntl).to.be.called;
             expect(base.createAnnotatorOptions).to.be.calledWith(sinon.match(annotationsOptions));
         });
+
+        it('should emit annotator_create event', () => {
+            sandbox.stub(base, 'areAnnotationsEnabled').returns(true);
+
+            base.createAnnotator();
+
+            expect(base.emit).to.be.calledWith('annotator_create', annotatorMock);
+        });
     });
 
     describe('initAnnotations()', () => {