#binmode FILEHANDLE
#binmode FILEHANDLE, DISCIPLINE

$infile="a.gif";
open( INFILE, "<$infile" );
open( OUTFILE, ">out.gif" );

binmode( INFILE );  
binmode( OUTFILE );

while ( read( INFILE, $buffer, 1024 ) ) {
    print OUTFILE $buffer;
}

close( INFILE );
close( OUTFILE );