diff --git a/proposals/views/proposal_views.py b/proposals/views/proposal_views.py
index 67c635aa2..d8d3a4c60 100644
--- a/proposals/views/proposal_views.py
+++ b/proposals/views/proposal_views.py
@@ -372,6 +372,16 @@ class ProposalUpdateDataManagement(GroupRequiredMixin, generic.UpdateView):
     form_class = ProposalUpdateDataManagementForm
     group_required = settings.GROUP_SECRETARY
 
+    def form_valid(self, form):
+        ret = super().form_valid(form)
+        # Always regenerate the PDF after updating the DMP
+        # This is necessary, as the canonical PDF protection might already
+        # have kicked in if the secretary changes the documents later than
+        # we initially expected.
+        self.object.generate_pdf(force_overwrite=True)
+
+        return ret
+
     def get_success_url(self):
         """Continue to the URL specified in the 'next' POST parameter"""
         return reverse('reviews:detail', args=[self.object.latest_review().pk])
diff --git a/studies/views/study_views.py b/studies/views/study_views.py
index 134434c6b..b2843c36b 100644
--- a/studies/views/study_views.py
+++ b/studies/views/study_views.py
@@ -159,6 +159,16 @@ class StudyUpdateAttachments(braces.GroupRequiredMixin, generic.UpdateView):
     form_class = StudyUpdateAttachmentsForm
     group_required = settings.GROUP_SECRETARY
 
+    def form_valid(self, form):
+        ret = super().form_valid(form)
+        # Always regenerate the PDF after updating any study documents
+        # This is necessary, as the canonical PDF protection might already
+        # have kicked in if the secretary changes the documents later than
+        # we initially expected.
+        self.object.proposal.generate_pdf(force_overwrite=True)
+
+        return ret
+
     def get_success_url(self):
         """Continue to the URL specified in the 'next' POST parameter"""
         return self.request.POST.get('next', '/')