Laravel 5 Fpdi Unicode字符

Question

I need help for my laravel project. I am using Fpdi to import PDF but when I display it on localhost, I have only unicode characters like this :

%PDF-1.4 3 0 obj <> endobj 4 0 obj <> stream x E K 0D 9 ,a :i d H | 4 ⓠr| !y aƗ!C* r y { 98
L>|a )w endstream endobj 1 0 obj <> endobj 5 0 obj <> stream x ]R n 0

Here is my code:

use setasign\ Fpdi;

// initiate FPDI
$pdf = new Fpdi\ Fpdi();
// add a page
$pdf - > AddPage();
// set the source file
$pdf - > setSourceFile(storage_path("justificatif.pdf"));
// import page 1
$tplIdx = $pdf - > importPage(1);
// use the imported page and place it at point 10,10 with a width of 100 mm
$pdf - > useImportedPage($tplIdx, 10, 10, 100);

// now write some text above the imported page
$pdf - > SetFont('Helvetica');
$pdf - > SetTextColor(255, 0, 0);
$pdf - > SetXY(30, 30);
$pdf - > Write(0, 'This is just a simple text');

$pdf - > Output();

My route:

Route::get('/testpdf', function() {
    return view('layouts/essai'); 
});

Why is this happening and how to fix this?

Answer 1

Try to return it like this The browser doesn't know the type of the response unless you send it so it doesn't know it should show a pdf

...
return response($pdf->Output('S'))->withHeaders(['Content-Type' => 'application/pdf']);

Source docs https://laravel.com/docs/5.6/responses#attaching-headers-to-responses