How to upload pdf file in laravel

There are loads of upload tutorials available. PDF is no different to any other type of upload.

I upload image but when I try for pdf don't work

'don't work'

Can't help you there I'm afraid. Try googling 'don't work' - see what you get

if($request->hasFile('file')){

        $filenameWithExt = $request->file('file')->getClientOriginalName();

        $filename = pathinfo($filenameWithExt, PATHINFO_FILENAME);

        $extension = $request->file('file')->getClientOriginalExtension();

        $fileNameToStore = $filename.'-'.time().'.'.$extension;

        $path = $request->file('file')->storeAs('public/file', $fileNameToStore);

     } else {
        $fileNameToStore = 'noimage.jpg';
     }

     //  Create 
     $monogeraf = new Monogeraf;
     $monogeraf->thesis_code = $request->input('thesis_code');
     $monogeraf->student_code = $request->input('student_code');
     $monogeraf->title = $request->input('title');
     $monogeraf->author = $request->input('author');
     $monogeraf->supervisor = $request->input('supervisor');
     $monogeraf->advisor = $request->input('advisor');
     $monogeraf->department = $request->input('department');
     $monogeraf->date_defance = $request->input('date_defance');
     $monogeraf->file = $fileNameToStore;
     $monogeraf->save();

         if($monogeraf){
        return redirect()->route('monogerafs.index', ['monogeraf'=>$monogeraf->id])
                         ->with('success', 'Monogeraf Create successfully');
    }
     return back()->withInput();

this is my source.

How far does it get through your code?

What errors do you see?

Do you end up with 'noimage.jpg' written the the database?

yes when I upload pdf file runs else how can I solve that?

so request does not have 'file'

We would need to see the form to help there

can you help me what shoud I do?

you can examine the request object dd($request) and see if it contains your file, and you can post your upload form here

Do you have enctype="multipart/form-data" on your form element?

<form action="/your-url" method="post" enctype="multipart/form-data">
</form>

@morteza_saberi

Yes I add enctype="multipart/form-data" in my form