diff --git a/odoo/addons/base/i18n/base.pot b/odoo/addons/base/i18n/base.pot
index 1d98a6304a1..612dae8470e 100644
--- a/odoo/addons/base/i18n/base.pot
+++ b/odoo/addons/base/i18n/base.pot
@@ -18694,6 +18694,12 @@ msgid ""
 "again after refreshing."
 msgstr ""
 
+#. module: base
+#: code:addons/base/models/ir_actions_report.py:0
+#, python-format
+msgid "One of the documents, you try to merge is encrypted"
+msgstr ""
+
 #. module: base
 #: code:addons/models.py:0
 #, python-format
diff --git a/odoo/addons/base/models/ir_actions_report.py b/odoo/addons/base/models/ir_actions_report.py
index ecbdda19b17..db3b875fad3 100644
--- a/odoo/addons/base/models/ir_actions_report.py
+++ b/odoo/addons/base/models/ir_actions_report.py
@@ -23,7 +23,7 @@ from lxml import etree
 from contextlib import closing
 from distutils.version import LooseVersion
 from reportlab.graphics.barcode import createBarcodeDrawing
-from PyPDF2 import PdfFileWriter, PdfFileReader
+from PyPDF2 import PdfFileWriter, PdfFileReader, utils
 from collections import OrderedDict
 from collections.abc import Iterable
 from PIL import Image, ImageFile
@@ -678,7 +678,10 @@ class IrActionsReport(models.Model):
         if len(streams) == 1:
             result = streams[0].getvalue()
         else:
-            result = self._merge_pdfs(streams)
+            try:
+                result = self._merge_pdfs(streams)
+            except utils.PdfReadError:
+                raise UserError(_("One of the documents, you try to merge is encrypted"))
 
         # We have to close the streams after PdfFileWriter's call to write()
         close_streams(streams)