From 36a551ce9a7cd848903fe40c6cca82009f9bd310 Mon Sep 17 00:00:00 2001
From: "Micah Andrew F. Bule" <micah.bule@gmail.com>
Date: Fri, 22 Jun 2018 07:49:07 +0800
Subject: [PATCH] Fixed error handling

---
 lib/pdf.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/pdf.js b/lib/pdf.js
index 3179754..c74d7bb 100644
--- a/lib/pdf.js
+++ b/lib/pdf.js
@@ -121,7 +121,7 @@ PDF.prototype.exec = function PdfExec (callback) {
     // Ignore if code has a value of 0 since that means PhantomJS has executed and exited successfully.
     // Also, as per your script and standards, having a code value of 1 means one can always assume that
     // an error occured.
-    if ((typeof code !== 'undefined' && code !== null) && code !== 0) {
+    if (((typeof code !== 'undefined' && code !== null) && code !== 0) || err) {
       var error = null
 
       if (err) {
@@ -134,7 +134,7 @@ PDF.prototype.exec = function PdfExec (callback) {
 
       // Append anything caught from the stderr
       var postfix = stderr.length ? '\n' + Buffer.concat(stderr).toString() : ''
-      if (postfix) err.message += postfix
+      if (postfix) error.message += postfix
 
       return callback(error)
     }