From b0a66eef78472fa1342b6eeaf19a521471313e06 Mon Sep 17 00:00:00 2001
From: Michael R Sweet <msweet@msweet.org>
Date: Mon, 9 Oct 2023 10:04:20 -0400
Subject: [PATCH] Fix reading of PDF files from Crystal Reports (Issue #45)

---
 CHANGES.md   | 1 +
 pdfio-file.c | 6 +++---
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/CHANGES.md b/CHANGES.md
index e7a6c13..5c7039c 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -9,6 +9,7 @@ v1.1.2 (TBD)
   dash pattern (Issue #41)
 - Fixed an issue with broken PDF files containing extra CR and/or LF separators
   after the object stream token (Issue #40)
+- Fixed an issue with PDF files produced by Crystal Reports (Issue #45)
 - Fixed an issue with PDF files produced by Microsoft Reporting Services
   (Issue #46)
 
diff --git a/pdfio-file.c b/pdfio-file.c
index c7c736f..55d9710 100644
--- a/pdfio-file.c
+++ b/pdfio-file.c
@@ -1914,12 +1914,12 @@ load_xref(
 	}
       }
     }
-    else if (!strcmp(line, "xref"))
+    else if (!strncmp(line, "xref", 4) && !line[4] || isspace(line[4] & 255))
     {
       // Read the xref tables
       while (_pdfioFileGets(pdf, line, sizeof(line)))
       {
-	if (!strcmp(line, "trailer"))
+	if (!strncmp(line, "trailer", 7) && !line[7] || isspace(line[7] & 255))
 	  break;
 	else if (!line[0])
 	  continue;
@@ -1984,7 +1984,7 @@ load_xref(
 	}
       }
 
-      if (strcmp(line, "trailer"))
+      if (strncmp(line, "trailer", 7))
       {
 	_pdfioFileError(pdf, "Missing trailer.");
 	return (false);