diff --git a/polynum/request/forms.py b/polynum/request/forms.py
index 76c9db4..323707f 100644
--- a/polynum/request/forms.py
+++ b/polynum/request/forms.py
@@ -89,7 +89,7 @@ class DocumentUploadForm(BaseModelForm):
 
     def __init__(self, *args, **kwargs):
         super(DocumentUploadForm, self).__init__(*args, **kwargs)
-        self.fields['uploadfile'].label = _(u'Document, en format PDF')
+        self.fields['uploadfile'].label = _(u'Document')
         self.fields['uploadfile'].help_text = _(u'Taille maximum autorisée: %s.') % \
                 filesizeformat(app_settings.MAX_DOCUMENT_SIZE)
 
diff --git a/polynum/request/utils.py b/polynum/request/utils.py
index ae5bb9c..7b83877 100644
--- a/polynum/request/utils.py
+++ b/polynum/request/utils.py
@@ -8,6 +8,8 @@ logger = logging.getLogger(__name__)
 from pyPdf import PdfFileReader
 from pyPdf.utils import PyPdfError
 
+import magic
+
 from ..base.models import Request
 from ..utils import cache_to_django
 
@@ -27,9 +29,13 @@ def check_pdf(filelike):
         raise ValueError(N_(u"Vous ne pouvez envoyer que des fichiers PDF."))
 
 def fill_document_attributes_from_pdf_file(document, docfile):
+    if not docfile:
+        return
     try:
-        if docfile:
-            docfile.open()
+        docfile.open()
+        mime_type = magic.from_buffer(docfile.read(), mime=True)
+        docfile.seek(0)
+        if mime_type == 'application/pdf':
             try:
                 pdf_file = PdfFileReader(docfile)
             except:
@@ -43,6 +49,9 @@ def fill_document_attributes_from_pdf_file(document, docfile):
             titles = filter(None, [pdf_info.title, pdf_info.subject])
             document.name = u' - '.join(titles)[:60]
             document.nb_pages = pdf_file.numPages or 0
+        if mime_type == 'image/jpeg':
+            return
+        raise ValueError(N_(u"Ce type de fichier n'est pas accepté"))
     except PyPdfError:
         raise ValueError(N_(u"Vous ne pouvez envoyer que des fichiers PDF."))
 
diff --git a/requirements b/requirements
index 1afc528..a42df78 100644
--- a/requirements
+++ b/requirements
@@ -13,3 +13,4 @@ django-ajax-selects==1.2.5
 -f https://repos.entrouvert.org/python-entrouvert.git/
 python-entrouvert
 raven
+python-magic