diff --git a/app.php b/app.php
index c13901f..78a87f7 100644
--- a/app.php
+++ b/app.php
@@ -93,19 +93,20 @@ $f3->route('POST /image2svg',
         array_map('unlink', glob($imageFile."*"));
     }
 );
-$f3->route('POST /@key/save',
+$f3->route('POST /sign',
     function($f3) {
-        $key = $f3->get('PARAMS.key');
+        $filename = null;
         $files = Web::instance()->receive(function($file,$formFieldName){
             if(strpos(Web::instance()->mime($file['tmp_name'], true), 'application/pdf') !== 0) {
-
                 return false;
             }
 
             return true;
-        }, true, function($fileBaseName, $formFieldName) use ($key) {
-
-            return $key.".pdf";
+        }, true, function($fileBaseName, $formFieldName) use ($f3, &$filename) {
+            $filename = str_replace(".pdf", "_signe.pdf", $fileBaseName);
+            $tmpfile = tempnam($f3->get('UPLOADS'), 'pdfsignature_pdf');
+            unlink($tmpfile);
+            return basename($tmpfile).".pdf";
 	    });
 
         $pdfFile = null;
@@ -121,27 +122,23 @@ $f3->route('POST /@key/save',
         }
 
         $svgData = $_POST['svg'];
-        $filename = null;
-        if(isset($_POST['filename']) && $_POST['filename']) {
-            $filename = str_replace(".pdf", "_signe.pdf", $_POST['filename']);
-        }
 
         $svgFiles = "";
         foreach($svgData as $index => $svgItem) {
-            $svgFile = $f3->get('UPLOADS').$key.'_'.$index.'.svg';
+            $svgFile = $pdfFile.'_'.$index.'.svg';
             file_put_contents($svgFile, $svgItem);
             $svgFiles .= $svgFile . " ";
         }
 
-        shell_exec(sprintf("rsvg-convert -f pdf -o %s %s", $f3->get('UPLOADS').$key.'.svg.pdf', $svgFiles));
-        shell_exec(sprintf("pdftk %s multibackground %s output %s", $f3->get('UPLOADS').$key.'.svg.pdf', $f3->get('UPLOADS').$key.'.pdf', $f3->get('UPLOADS').$key.'_signe.pdf'));
+        shell_exec(sprintf("rsvg-convert -f pdf -o %s %s", $pdfFile.'.svg.pdf', $svgFiles));
+        shell_exec(sprintf("pdftk %s multibackground %s output %s", $pdfFile.'.svg.pdf', $pdfFile, $pdfFile.'_signe.pdf'));
 
-        Web::instance()->send($f3->get('UPLOADS').$key.'_signe.pdf', null, 0, TRUE, $filename);
+        Web::instance()->send($pdfFile.'_signe.pdf', null, 0, TRUE, $filename);
 
         if($f3->get('DEBUG')) {
             return;
         }
-        array_map('unlink', glob($f3->get('UPLOADS').$key."*"));
+        array_map('unlink', glob($pdfFile."*"));
     }
 );
 
diff --git a/public/js/app.js b/public/js/app.js
index 754722b..2097abb 100644
--- a/public/js/app.js
+++ b/public/js/app.js
@@ -473,10 +473,6 @@ loadingTask.promise.then(function(pdf) {
         xhr.send( formData );
     }
 
-    if(filename) {
-        document.getElementById('input_filename').value = filename;
-    }
-
     document.getElementById('save').addEventListener('click', function(event) {
         canvasEditions.forEach(function(canvasEdition, index) {
             document.getElementById('data-svg-'+index).value = canvasEdition.toSVG();
diff --git a/templates/index.html.php b/templates/index.html.php
index f882e94..038d2df 100644
--- a/templates/index.html.php
+++ b/templates/index.html.php
@@ -16,7 +16,7 @@
             <div class="col-12">
               <label for="input_pdf_upload" class="form-label">Choisir un PDF</label>
               <input id="input_pdf_upload" class="form-control form-control-lg" type="file" accept=".pdf,application/pdf">
-              <p><small class="text-muted">(Le PDF ne doit pas dépasser <?php echo round($maxSize / 1024 / 1024) ?> mo)</small></p>
+              <p><small class="text-muted">Le PDF ne doit pas dépasser <?php echo round($maxSize / 1024 / 1024) ?> Mo</small></p>
               <a class="btn btn-sm btn-link opacity-75" href="/#https://raw.githubusercontent.com/24eme/signaturepdf/master/tests/files/document.pdf">Tester avec un PDF de démo</a>
             </div>
         </div>
@@ -39,7 +39,7 @@
             document.getElementById('input_pdf_upload').addEventListener('change', async function(event) {
                 if(document.getElementById('input_pdf_upload').files[0].size > maxSize) {
 
-                    alert("Le PDF ne doit pas dépasser <?php echo round($maxSize / 1024 / 1024) ?> mo");
+                    alert("Le PDF ne doit pas dépasser <?php echo round($maxSize / 1024 / 1024) ?> Mo");
                     document.getElementById('input_pdf_upload').value = "";
                     return;
                 }
diff --git a/templates/pdf.html.php b/templates/pdf.html.php
index 0fd92ac..72b565c 100644
--- a/templates/pdf.html.php
+++ b/templates/pdf.html.php
@@ -68,8 +68,7 @@
                   <button type="button" id="btn-add-svg" class="btn btn-sm btn-light" data-bs-toggle="modal" data-bs-target="#modalAddSvg"><i class="bi bi-plus-circle"></i> Ajouter un élément</button>
               </div>
 
-              <form class="position-absolute bottom-0 pb-2 ps-0 pe-4 w-100 d-none d-sm-none d-md-block" id="form_pdf" action="/<?php echo $key ?>/save" method="post" enctype="multipart/form-data">
-                    <input id="input_filename" type="hidden" name="filename" value="" />
+              <form class="position-absolute bottom-0 pb-2 ps-0 pe-4 w-100 d-none d-sm-none d-md-block" id="form_pdf" action="/sign" method="post" enctype="multipart/form-data">
                     <input id="input_pdf" name="pdf" type="file" class="d-none" />
                     <div class="d-grid gap-2 mt-2">
                         <button class="btn btn-primary" disabled="disabled" type="submit" id="save"><i    class="bi bi-download"></i> Télécharger le PDF Signé</button>