diff --git a/ext/handle_flash/main.php b/ext/handle_flash/main.php
index 7520cfbf..5c188d99 100644
--- a/ext/handle_flash/main.php
+++ b/ext/handle_flash/main.php
@@ -54,10 +54,6 @@ class FlashFileHandler extends DataHandlerExtension
 
     protected function check_contents(string $tmpname): bool
     {
-        if (!file_exists($tmpname)) {
-            return false;
-        }
-
         $fp = fopen($tmpname, "r");
         $head = fread($fp, 3);
         fclose($fp);
diff --git a/ext/handle_ico/main.php b/ext/handle_ico/main.php
index 28599302..2bd68cac 100644
--- a/ext/handle_ico/main.php
+++ b/ext/handle_ico/main.php
@@ -48,9 +48,6 @@ class IcoFileHandler extends DataHandlerExtension
 
     protected function check_contents(string $file): bool
     {
-        if (!file_exists($file)) {
-            return false;
-        }
         $fp = fopen($file, "r");
         $header = unpack("Snull/Stype/Scount", fread($fp, 6));
         fclose($fp);
diff --git a/ext/handle_mp3/main.php b/ext/handle_mp3/main.php
index f36b05ca..a2ac2865 100644
--- a/ext/handle_mp3/main.php
+++ b/ext/handle_mp3/main.php
@@ -51,14 +51,7 @@ class MP3FileHandler extends DataHandlerExtension
 
     protected function check_contents(string $tmpname): bool
     {
-        $success = false;
-
-        if (file_exists($tmpname)) {
-            $mimeType = getMimeType($tmpname);
-
-            $success = ($mimeType == 'audio/mpeg');
-        }
-
-        return $success;
+        $mimeType = getMimeType($tmpname);
+        return ($mimeType == 'audio/mpeg');
     }
 }
diff --git a/ext/handle_pixel/main.php b/ext/handle_pixel/main.php
index 79b42e12..70036b90 100644
--- a/ext/handle_pixel/main.php
+++ b/ext/handle_pixel/main.php
@@ -63,9 +63,6 @@ class PixelFileHandler extends DataHandlerExtension
     protected function check_contents(string $tmpname): bool
     {
         $valid = [IMAGETYPE_PNG, IMAGETYPE_GIF, IMAGETYPE_JPEG, IMAGETYPE_WEBP];
-        if (!file_exists($tmpname)) {
-            return false;
-        }
         $info = getimagesize($tmpname);
         if (!$info) {
             return false;
diff --git a/ext/handle_svg/main.php b/ext/handle_svg/main.php
index fc1c675d..93c0b5d1 100644
--- a/ext/handle_svg/main.php
+++ b/ext/handle_svg/main.php
@@ -98,10 +98,6 @@ class SVGFileHandler extends DataHandlerExtension
 
     protected function check_contents(string $file): bool
     {
-        if (!file_exists($file)) {
-            return false;
-        }
-
         $msp = new MiniSVGParser($file);
         return bool_escape($msp->valid);
     }
diff --git a/ext/handle_video/main.php b/ext/handle_video/main.php
index e669a463..2cd792e5 100644
--- a/ext/handle_video/main.php
+++ b/ext/handle_video/main.php
@@ -126,9 +126,6 @@ class VideoFileHandler extends DataHandlerExtension
 
     protected function check_contents(string $tmpname): bool
     {
-        return (
-            file_exists($tmpname) &&
-            in_array(getMimeType($tmpname), self::SUPPORTED_MIME)
-        );
+        return in_array(getMimeType($tmpname), self::SUPPORTED_MIME);
     }
 }