1 files changed, 17 insertions, 1 deletions
diff --git a/src/main/java/at/gv/egiz/pdfas/api/sign/SignParameters.java b/src/main/java/at/gv/egiz/pdfas/api/sign/SignParameters.java
index 9a01c72..8dc928b 100644
--- a/src/main/java/at/gv/egiz/pdfas/api/sign/SignParameters.java
+++ b/src/main/java/at/gv/egiz/pdfas/api/sign/SignParameters.java
@@ -286,7 +286,23 @@ public class SignParameters
   /**
    * Override user defined values from the used signature profile like "value.SIG_META". 
    * You cannot override pre defined values like SIG_VALUE, SIG_DATE {@link SignatureTypes#REQUIRED_SIG_KEYS}. 
-   * The override values are bound to the {@link SignParameters} instance. 
+   * The override values are bound to the {@link SignParameters} instance.
+   * <p>
+   * Sample usage:
+   * <pre>
+      SignParameters sp = new SignParameters();
+      . . .
+      
+      sp.setSignatureProfileId("SIGNATURBLOCK_DE");  
+      
+      // expressions do not work on binary signature fields without phlength setting!!
+      sp.setProfileOverrideValue("SIG_META", "It's nice to be important, but it is more important to be nice ${subject.L}");;
+      sp.setProfileOverrideValue("SIG_LABEL", "./images/signatur-logo_en.png");                  
+      
+      // execute sign using the overrides
+      pdfAs.sign(sp);
+  </pre>
+   * </p>
    * @param key the name of the setting to override e.g. "SIG_META"
    * @param value The new value
    */