diff --git a/src/main/java/stirling/software/SPDF/model/api/security/AddPasswordRequest.java b/src/main/java/stirling/software/SPDF/model/api/security/AddPasswordRequest.java
index 982a31244..6769a20cb 100644
--- a/src/main/java/stirling/software/SPDF/model/api/security/AddPasswordRequest.java
+++ b/src/main/java/stirling/software/SPDF/model/api/security/AddPasswordRequest.java
@@ -13,20 +13,23 @@ public class AddPasswordRequest extends PDFFile {
 
     @Schema(
             description =
-                    "The owner password to be added to the PDF file (Restricts what can be done with the document once it is opened)",
-            defaultValue = "")
+                    "The owner password to be added to the PDF file (Restricts what can be done"
+                            + " with the document once it is opened)",
+            format = "password")
     private String ownerPassword;
 
     @Schema(
             description =
-                    "The password to be added to the PDF file (Restricts the opening of the document itself.)",
-            defaultValue = "")
+                    "The password to be added to the PDF file (Restricts the opening of the"
+                            + " document itself.)",
+            format = "password")
     private String password;
 
     @Schema(
             description = "The length of the encryption key",
             allowableValues = {"40", "128", "256"},
-            defaultValue = "256")
+            defaultValue = "256",
+            requiredMode = Schema.RequiredMode.REQUIRED)
     private int keyLength = 256;
 
     @Schema(description = "Whether document assembly is prevented", example = "false")