From cdd7142d6d7e964ffd1e4258a29eaaa61d40f5e4 Mon Sep 17 00:00:00 2001
From: ag3202 <ag3202@126.com>
Date: Thu, 29 Feb 2024 13:09:25 +0800
Subject: [PATCH] Addressing Compatibility Issues Causing Crashes

---
 src/PhpPresentation/Reader/PowerPoint2007.php |  2 ++
 .../Slide/Background/Image.php                | 23 ++++++++++++++++++-
 2 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/src/PhpPresentation/Reader/PowerPoint2007.php b/src/PhpPresentation/Reader/PowerPoint2007.php
index fb37606d5..54ac92ddc 100644
--- a/src/PhpPresentation/Reader/PowerPoint2007.php
+++ b/src/PhpPresentation/Reader/PowerPoint2007.php
@@ -485,6 +485,8 @@ protected function loadSlide(string $sPart, string $baseFile): void
                         // Background
                         $oBackground = new Slide\Background\Image();
                         $oBackground->setPath($tmpBkgImg);
+                        $extension = pathinfo( $pathImage, PATHINFO_EXTENSION );
+                        $oBackground->setExtension($extension);
                         // Slide Background
                         $oSlide = $this->oPhpPresentation->getActiveSlide();
                         $oSlide->setBackground($oBackground);
diff --git a/src/PhpPresentation/Slide/Background/Image.php b/src/PhpPresentation/Slide/Background/Image.php
index d39d00901..a4feef073 100644
--- a/src/PhpPresentation/Slide/Background/Image.php
+++ b/src/PhpPresentation/Slide/Background/Image.php
@@ -46,6 +46,11 @@ class Image extends AbstractBackground
      */
     protected $width;
 
+    /**
+     * @var string
+     */
+    protected $extension;
+
     /**
      * Get Path.
      */
@@ -79,6 +84,19 @@ public function setPath(string $pValue = '', bool $pVerifyFile = true)
         return $this;
     }
 
+    /**
+     * Set Extension.
+     *
+     * @param string $pValue File Extension
+     *
+     * @return self
+     */
+    public function setExtension(string $pValue)
+    {
+        $this->extension = $pValue;
+        return $this;
+    }
+
     /**
      * Get Filename.
      */
@@ -92,9 +110,12 @@ public function getFilename(): string
      */
     public function getExtension(): string
     {
+        if($this->extension){
+            return $this->extension;
+        }
         $exploded = explode('.', $this->getFilename());
-
         return $exploded[count($exploded) - 1];
+
     }
 
     /**