diff --git a/lib/zgapdfsigner.js b/lib/zgapdfsigner.js
index a0425e0..7a14dbc 100644
--- a/lib/zgapdfsigner.js
+++ b/lib/zgapdfsigner.js
@@ -430,7 +430,7 @@ z.PdfSigner = class{
 				}
 				/** @type {Zga.PdfCryptor} */
 				_this.cyptr = new z.PdfCryptor(cypopt);
-				pdfdoc = await _this.cyptr.encryptPdf(pdfdoc, encref);
+				await _this.cyptr.encryptPdf(pdfdoc, encref);
 				z.log("Pdf data has been encrypted.");
 			}
 		}