diff --git a/resources/views/pages/pdfs/InvoiceHelpers.php b/resources/views/pages/pdfs/InvoiceHelpers.php
new file mode 100644
index 00000000..ae407479
--- /dev/null
+++ b/resources/views/pages/pdfs/InvoiceHelpers.php
@@ -0,0 +1,24 @@
+<?php
+
+function calculateSubtotal($po_order_transaction, $currencyRate) {
+    $subtotal = "0";
+    foreach ($po_order_transaction->transactionDetails as $transaction_detail) {
+        $unitPrice = bcdiv((string)$transaction_detail->price, (string)$currencyRate, 5);
+        $itemTotal = bcmul($unitPrice, (string)$transaction_detail->quantity, 5);
+        $subtotal = bcadd($subtotal, $itemTotal, 5);
+    }
+    return $subtotal;
+}
+
+function getVoucherDiscount($voucher_redemption) {
+    return $voucher_redemption ? bcmul((string)$voucher_redemption->value, "-1", 2) : "0";
+}
+function roundUp($number, $decimals)
+{
+    $factor = pow(10, $decimals);
+    if ($number > 0) {
+        return ceil($number * $factor) / $factor;
+    } else {
+        return floor($number * $factor) / $factor;
+    }
+}
diff --git a/resources/views/pages/pdfs/deliver_order.blade.php b/resources/views/pages/pdfs/deliver_order.blade.php
index b58fd066..03e74a8b 100644
--- a/resources/views/pages/pdfs/deliver_order.blade.php
+++ b/resources/views/pages/pdfs/deliver_order.blade.php
@@ -1,3 +1,4 @@
+@include('InvoiceHelpers')
 @extends('layouts.base_pdf')
 @section('inner_content')
     <br>
@@ -167,28 +168,4 @@
             </tr>
         </table>
     </htmlpagefooter>
-    @php
-        function calculateSubtotal($po_order_transaction, $currencyRate) {
-            $subtotal = "0";
-            foreach ($po_order_transaction->transactionDetails as $transaction_detail) {
-                $unitPrice = bcdiv((string)$transaction_detail->price, (string)$currencyRate, 5);
-                $itemTotal = bcmul($unitPrice, (string)$transaction_detail->quantity, 5);
-                $subtotal = bcadd($subtotal, $itemTotal, 5);
-            }
-            return $subtotal;
-        }
-
-        function getVoucherDiscount($voucher_redemption) {
-            return $voucher_redemption ? bcmul((string)$voucher_redemption->value, "-1", 2) : "0";
-        }
-        function roundUp($number, $decimals) {
-        $factor = pow(10, $decimals);
-        if ($number > 0) {
-            return ceil($number * $factor) / $factor;
-        } else {
-            return floor($number * $factor) / $factor;
-        }
-    }
-
-    @endphp
 @endsection
diff --git a/resources/views/pages/pdfs/invoice.blade.php b/resources/views/pages/pdfs/invoice.blade.php
index 066fb971..3ff19f19 100644
--- a/resources/views/pages/pdfs/invoice.blade.php
+++ b/resources/views/pages/pdfs/invoice.blade.php
@@ -1,3 +1,4 @@
+@include('InvoiceHelpers')
 @extends('layouts.base_pdf')
 
 @section('inner_content')
diff --git a/resources/views/pages/pdfs/purchase_order.blade.php b/resources/views/pages/pdfs/purchase_order.blade.php
index 220b0ae5..54f81654 100644
--- a/resources/views/pages/pdfs/purchase_order.blade.php
+++ b/resources/views/pages/pdfs/purchase_order.blade.php
@@ -1,3 +1,4 @@
+@include('InvoiceHelpers')
 @extends('layouts.base_pdf')
 @section('inner_content')
     <br>
@@ -175,28 +176,4 @@
             </tr>
         </table>
     </htmlpagefooter>
-    @php
-        function calculateSubtotal($po_order_transaction, $currencyRate) {
-            $subtotal = "0";
-            foreach ($po_order_transaction->transactionDetails as $transaction_detail) {
-                $unitPrice = bcdiv((string)$transaction_detail->price, (string)$currencyRate, 5);
-                $itemTotal = bcmul($unitPrice, (string)$transaction_detail->quantity, 5);
-                $subtotal = bcadd($subtotal, $itemTotal, 5);
-            }
-            return $subtotal;
-        }
-
-        function getVoucherDiscount($voucher_redemption) {
-            return $voucher_redemption ? bcmul((string)$voucher_redemption->value, "-1", 2) : "0";
-        }
-        function roundUp($number, $decimals) {
-        $factor = pow(10, $decimals);
-        if ($number > 0) {
-            return ceil($number * $factor) / $factor;
-        } else {
-            return floor($number * $factor) / $factor;
-        }
-    }
-
-    @endphp
 @endsection