Compatibility with an external file storage separated in pub/ and priv/

src/pretix/plugins/ticketoutputpdf/ticketoutput.py

@@ -317,7 +317,7 @@ class PdfTicketOutput(BaseTicketOutput):
             bgf = default_storage.open(bg_file.name, "rb")
         else:
             bgf = self._get_default_background()
-        bg_pdf = PdfFileReader(bgf)
+        bg_pdf = PdfFileReader(BytesIO(bgf.read()))
 
         for page in new_pdf.pages:
             bg_page = copy.copy(bg_pdf.getPage(0))

src/pretix/plugins/ticketoutputpdf/views.py

@@ -138,7 +138,7 @@ class EditorView(EventPermissionRequiredMixin, TemplateView):
 
                 # Create new file
                 nonce = get_random_string(length=8)
-                fname = '%s-%s/%s/%s.%s.%s' % (
+                fname = 'pub/%s-%s/%s/%s.%s.%s' % (
                     'event', 'settings', self.request.event.pk, 'ticketoutput_{}_layout'.format(self.identifier), nonce, 'pdf'
                 )
                 newname = default_storage.save(fname, cf.file)