diff --git a/EnvelopeGenerator.CommonServices/Jobs/FinalizeDocument/PDFBurner.vb b/EnvelopeGenerator.CommonServices/Jobs/FinalizeDocument/PDFBurner.vb
index eeb5dee6..795029b2 100644
--- a/EnvelopeGenerator.CommonServices/Jobs/FinalizeDocument/PDFBurner.vb
+++ b/EnvelopeGenerator.CommonServices/Jobs/FinalizeDocument/PDFBurner.vb
@@ -212,7 +212,7 @@ Namespace Jobs.FinalizeDocument
                         Throw New BurnAnnotationException("The identifier of annotation is null or empty.")
                     End If
 
-                    Dim parts As String() = value.Split("-"c)
+                    Dim parts As String() = value.Split("#"c)
 
                     If (parts.Length <> 4) Then
                         Throw New BurnAnnotationException($"The identifier of annotation has more or less than 4 sub-part. Id: {_id}")
diff --git a/EnvelopeGenerator.Web/wwwroot/js/annotation.js b/EnvelopeGenerator.Web/wwwroot/js/annotation.js
index 2e0aabc6..02f37ee2 100644
--- a/EnvelopeGenerator.Web/wwwroot/js/annotation.js
+++ b/EnvelopeGenerator.Web/wwwroot/js/annotation.js
@@ -9,7 +9,7 @@
     let elementIndex = 0;
 
     function generateId(annotationType) {
-        return `${envelopeId}_${receiverId}_${elementIndex++}_${annotationType}`;
+        return `${envelopeId}#${receiverId}#${elementIndex++}#${annotationType}`;
     }
 
     for (let element of document.elements) {