diff --git a/ereuse_devicehub/resources/tradedocument/models.py b/ereuse_devicehub/resources/tradedocument/models.py
index 409d34eb..7f15f9b1 100644
--- a/ereuse_devicehub/resources/tradedocument/models.py
+++ b/ereuse_devicehub/resources/tradedocument/models.py
@@ -77,8 +77,10 @@ class TradeDocument(Thing):
     lot.comment = """Lot to which the document is associated"""
     file_name = Column(db.CIText())
     file_name.comment = """This is the name of the file when user up the document."""
-    path_name = Column(db.CIText())
-    path_name.comment = """This is the name of the file as devicehub save in server."""
+    file_hash = Column(db.CIText())
+    file_hash.comment = """This is the hash of the file produced from frontend."""
+    url = Column(db.CIText())
+    url.comment = """This is the url where resides the document."""
 
     __table_args__ = (
         db.Index('document_id', id, postgresql_using='hash'),
diff --git a/ereuse_devicehub/resources/tradedocument/schemas.py b/ereuse_devicehub/resources/tradedocument/schemas.py
index e565afc2..e63610ec 100644
--- a/ereuse_devicehub/resources/tradedocument/schemas.py
+++ b/ereuse_devicehub/resources/tradedocument/schemas.py
@@ -1,8 +1,6 @@
-import base64
-
-from marshmallow.fields import DateTime, Integer, Raw
-from teal.marshmallow import SanitizedStr
-from marshmallow import ValidationError, validates_schema
+from marshmallow.fields import DateTime, Integer
+from teal.marshmallow import SanitizedStr, URL
+# from marshmallow import ValidationError, validates_schema
 
 from ereuse_devicehub.marshmallow import NestedOn
 from ereuse_devicehub.resources.schemas import Thing
@@ -14,18 +12,17 @@ class TradeDocument(Thing):
     __doc__ = m.TradeDocument.__doc__
     id = Integer(description=m.TradeDocument.id.comment, dump_only=True)
     date = DateTime(required=False, description=m.TradeDocument.date.comment)
-    id_document = SanitizedStr(default='', description=m.TradeDocument.id_document.comment)
-    description = SanitizedStr(default='', description=m.TradeDocument.description.comment)
-    file_name = SanitizedStr(default='', description=m.TradeDocument.file_name.comment)
-    file = Raw(type='file')
+    id_document = SanitizedStr(data_key='documentId', 
+                               default='', 
+                               description=m.TradeDocument.id_document.comment)
+    description = SanitizedStr(default='', 
+                               description=m.TradeDocument.description.comment)
+    file_name = SanitizedStr(data_key='filename',
+                             default='',
+                             description=m.TradeDocument.file_name.comment)
+    file_hash = SanitizedStr(data_key='hash',
+                             default='',
+                             description=m.TradeDocument.file_hash.comment)
+    url = URL(description=m.TradeDocument.url.comment)
     lot = NestedOn('Lot', only_query='id', description=m.TradeDocument.lot.__doc__)
     # lot = NestedOn(s_lot.Lot, only_query='id', description=m.TradeDocument.lot.__doc__)
-
-
-    @validates_schema
-    def validate_filestream(self, data):
-        if not data.get('file'):
-            txt = 'Error, no there are any file for save'
-            raise ValidationError(txt)
-
-        data['file'] = base64.b64decode(data['file'])