diff --git a/addons/base/controllers/main.py b/addons/base/controllers/main.py
index f5384697d17..c0d89bbfbe7 100644
--- a/addons/base/controllers/main.py
+++ b/addons/base/controllers/main.py
@@ -563,13 +563,28 @@ class FormView(View):
             if not id:
                 res = Model.default_get([field], request.context).get(field, '')
             else:
-                res = Model.read([id], [field], request.context)[0].get(field, '')
+                res = Model.read([int(id)], [field], request.context)[0].get(field, '')
             return base64.decodestring(res)
         except:
             return self.placeholder()
     def placeholder(self):
         return open(os.path.join(openerpweb.path_addons, 'base', 'static', 'src', 'img', 'placeholder.png'), 'rb').read()
 
+    @openerpweb.httprequest
+    def saveas(self, request, session_id, model, id, field, fieldname, **kw):
+        Model = request.session.model(model)
+        res = Model.read([int(id)], [field, fieldname])[0]
+        filecontent = res.get(field, '')
+        if not filecontent:
+            raise cherrypy.NotFound
+        else:
+            cherrypy.response.headers['Content-Type'] = 'application/octet-stream'
+            filename = '%s_%s' % (model.replace('.', '_'), id)
+            if fieldname:
+                filename = res.get(fieldname, '') or filename
+            cherrypy.response.headers['Content-Disposition'] = 'attachment; filename=' +  filename
+            return base64.decodestring(filecontent)
+
     @openerpweb.httprequest
     def upload(self, request, session_id, callback, ufile=None):
         cherrypy.response.timeout = 500
diff --git a/addons/base/static/src/js/form.js b/addons/base/static/src/js/form.js
index d91fef20a43..4e67684f163 100644
--- a/addons/base/static/src/js/form.js
+++ b/addons/base/static/src/js/form.js
@@ -1196,6 +1196,7 @@ openerp.base.form.FieldBinary = openerp.base.form.Field.extend({
     start: function() {
         this._super.apply(this, arguments);
         this.$element.find('input.oe-binary-file').change(this.on_file_change);
+        this.$element.find('button.oe-binary-file-save').click(this.on_save_as);
         this.$element.find('.oe-binary-file-clear').click(this.on_clear);
     },
     set_value_from_ui: function() {
@@ -1235,6 +1236,12 @@ openerp.base.form.FieldBinary = openerp.base.form.Field.extend({
     },
     on_file_uploaded_and_valid: function(size, name, content_type, file_base64) {
     },
+    on_save_as: function() {
+        var url = '/base/formview/saveas?session_id=' + this.session.session_id + '&model=' +
+            this.view.dataset.model +'&id=' + (this.view.datarecord.id || '') + '&field=' + this.name +
+            '&fieldname=' + (this.node.attrs.filename || '') + '&t=' + (new Date().getTime())
+        window.open(url);
+    },
     on_clear: function() {
         if (this.value !== false) {
             this.value = false;
@@ -1266,6 +1273,7 @@ openerp.base.form.FieldBinaryFile = openerp.base.form.FieldBinary.extend({
         var filename = this.node.attrs.filename;
         if (this.view.fields[filename]) {
             this.view.fields[filename].set_value(value);
+            this.view.fields[filename].on_ui_change();
         }
     },
     on_clear: function() {