diff -ur Image-Size-3.300/lib/Image/Size.pm Image-Size-3.300_fix/lib/Image/Size.pm
--- Image-Size-3.300/lib/Image/Size.pm	2015-02-28 18:00:55.000000000 +0100
+++ Image-Size-3.300_fix/lib/Image/Size.pm	2021-03-01 11:17:29.058012588 +0100
@@ -604,6 +604,7 @@
     my $stream = shift;
 
     my $MARKER     = chr 0xff; # Section marker
+    my $MARKER2    = chr 0x00; # some sections also use 0x00
 
     my $SIZE_FIRST = 0xC0;   # Range of segment identifier codes
     my $SIZE_LAST  = 0xC3;   #  that hold size info.
@@ -630,7 +631,7 @@
         $length = unpack 'n', $segheader;
 
         # Verify that it's a valid segment.
-        if ($marker ne $MARKER)
+        if ($marker ne $MARKER && $marker ne $MARKER2)
         {
             # Was it there?
             $id = 'JPEG marker not found';