diff --git a/src/main/java/stirling/software/SPDF/config/EndpointConfiguration.java b/src/main/java/stirling/software/SPDF/config/EndpointConfiguration.java
index 749ae2ac..7f429756 100644
--- a/src/main/java/stirling/software/SPDF/config/EndpointConfiguration.java
+++ b/src/main/java/stirling/software/SPDF/config/EndpointConfiguration.java
@@ -64,7 +64,8 @@ public class EndpointConfiguration {
         addEndpointToGroup("PageOps", "split-pdfs");
         addEndpointToGroup("PageOps", "pdf-organizer");
         addEndpointToGroup("PageOps", "rotate-pdf");
-
+        addEndpointToGroup("PageOps", "multi-page-layout");
+        
         // Adding endpoints to "Convert" group
         addEndpointToGroup("Convert", "pdf-to-img");
         addEndpointToGroup("Convert", "img-to-pdf");
@@ -82,6 +83,9 @@ public class EndpointConfiguration {
         addEndpointToGroup("Security", "remove-password");
         addEndpointToGroup("Security", "change-permissions");
         addEndpointToGroup("Security", "add-watermark");
+        addEndpointToGroup("Security", "cert-sign");
+        
+        
 
         // Adding endpoints to "Other" group
         addEndpointToGroup("Other", "ocr-pdf");
@@ -158,6 +162,9 @@ public class EndpointConfiguration {
         addEndpointToGroup("Java", "add-image");
         addEndpointToGroup("Java", "extract-images");
         addEndpointToGroup("Java", "change-metadata");
+        addEndpointToGroup("Java", "cert-sign");
+        addEndpointToGroup("Java", "multi-page-layout");
+        
         
         
         //Javascript
diff --git a/src/main/java/stirling/software/SPDF/controller/api/security/CertSignController.java b/src/main/java/stirling/software/SPDF/controller/api/security/CertSignController.java
index 925c57f8..a892d044 100644
--- a/src/main/java/stirling/software/SPDF/controller/api/security/CertSignController.java
+++ b/src/main/java/stirling/software/SPDF/controller/api/security/CertSignController.java
@@ -177,8 +177,17 @@ public class CertSignController {
             String signingDate = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss z").format(new Date());
 
             // Prepare the text for the digital signature
-            String layer2Text = String.format("Digitally signed by: %s\nDate: %s\nReason: %s\nLocation: %s", name, signingDate, reason, location);
+            StringBuilder layer2TextBuilder = new StringBuilder(String.format("Digitally signed by: %s\nDate: %s", 
+            	    name != null ? name : "Unknown", signingDate));
 
+        	if (reason != null && !reason.isEmpty()) {
+        		layer2TextBuilder.append("\nReason: ").append(reason);
+        	}
+
+        	if (location != null && !location.isEmpty()) {
+        		layer2TextBuilder.append("\nLocation: ").append(location);
+        	}
+            String 	layer2Text = layer2TextBuilder.toString();
             // Get the PDF font and measure the width and height of the text block
             PdfFont font = PdfFontFactory.createFont(StandardFonts.HELVETICA_BOLD);
             float textWidth = Arrays.stream(layer2Text.split("\n"))
@@ -206,12 +215,12 @@ public class CertSignController {
 
             // Configure the appearance of the digital signature
             appearance.setPageRect(rect)
-                      .setContact(name)
-                      .setPageNumber(pageNumber)
-                      .setReason(reason)
-                      .setLocation(location)
-                      .setReuseAppearance(false)
-                      .setLayer2Text(layer2Text);
+	            .setContact(name != null ? name : "")
+	            .setPageNumber(pageNumber)
+	            .setReason(reason != null ? reason : "")
+	            .setLocation(location != null ? location : "")
+	            .setReuseAppearance(false)
+	            .setLayer2Text(layer2Text.toString());
 
             signer.setFieldName("sig");
         } else {
diff --git a/src/main/resources/templates/convert/pdf-to-img.html b/src/main/resources/templates/convert/pdf-to-img.html
index 7e39f154..6e1597f5 100644
--- a/src/main/resources/templates/convert/pdf-to-img.html
+++ b/src/main/resources/templates/convert/pdf-to-img.html
@@ -43,7 +43,7 @@
                             </div>
                             <div class="form-group">
                                 <label for="dpi">DPI:</label> 
-                                <input type="number" name="dpi" class="form-control" id="dpi" min="1" max="100" step="1" value="30" required>
+                                <input type="number" name="dpi" class="form-control" id="dpi" min="1" step="1" value="300" required>
                             </div>
                             <button type="submit" id="submitBtn" class="btn btn-primary" th:text="#{pdfToImage.submit}"></button>
                         </form>