diff --git a/odoo/addons/base/models/ir_actions_report.py b/odoo/addons/base/models/ir_actions_report.py
index 4c4a5610a06..dd2aef301c3 100644
--- a/odoo/addons/base/models/ir_actions_report.py
+++ b/odoo/addons/base/models/ir_actions_report.py
@@ -794,6 +794,7 @@ class IrActionsReport(models.Model):
         if (tools.config['test_enable'] or tools.config['test_file']) and not self.env.context.get('force_report_rendering'):
             return self._render_qweb_html(report_ref, res_ids, data=data)
 
+        self = self.with_context(webp_as_jpg=True)
         collected_streams = self._render_qweb_pdf_prepare_streams(report_ref, data, res_ids=res_ids)
 
         # access the report details with sudo() but keep evaluation context as current user
diff --git a/odoo/addons/base/models/ir_qweb.py b/odoo/addons/base/models/ir_qweb.py
index 71a17884eec..f19f77f6132 100644
--- a/odoo/addons/base/models/ir_qweb.py
+++ b/odoo/addons/base/models/ir_qweb.py
@@ -359,6 +359,7 @@ structure.
 
 """
 
+import base64
 import fnmatch
 import io
 import logging
@@ -384,7 +385,7 @@ from odoo.tools.constants import SUPPORTED_DEBUGGER, EXTERNAL_ASSET
 from odoo.tools.safe_eval import assert_valid_codeobj, _BUILTINS, to_opcodes, _EXPR_OPCODES, _BLACKLIST
 from odoo.tools.json import scriptsafe
 from odoo.tools.misc import str2bool
-from odoo.tools.image import image_data_uri
+from odoo.tools.image import image_data_uri, FILETYPE_BASE64_MAGICWORD
 from odoo.http import request
 from odoo.tools.profiler import QwebTracker
 from odoo.exceptions import UserError, AccessDenied, AccessError, MissingError, ValidationError
@@ -861,6 +862,24 @@ class IrQWeb(models.AbstractModel):
 
     # values for running time
 
+    def _get_converted_image_data_uri(self, base64_source):
+        if self.env.context.get('webp_as_jpg'):
+            mimetype = FILETYPE_BASE64_MAGICWORD.get(base64_source[:1], 'png')
+            if 'webp' in mimetype:
+                # Use converted image so that is recognized by wkhtmltopdf.
+                bin_source = base64.b64decode(base64_source)
+                Attachment = self.env['ir.attachment']
+                checksum = Attachment._compute_checksum(bin_source)
+                origins = Attachment.search([['res_field', '!=', None], ['checksum', '=', checksum]])
+                if origins:
+                    converted = Attachment.search([
+                        ['res_model', '=', 'ir.attachment'],
+                        ['res_id', 'in', origins.ids],
+                    ], limit=1)
+                    if converted:
+                        base64_source = converted.datas
+        return image_data_uri(base64_source)
+
     def _prepare_environment(self, values):
         """ Prepare the values and context that will sent to the
         compiled and evaluated function.
@@ -878,7 +897,6 @@ class IrQWeb(models.AbstractModel):
             values.setdefault('debug', debug)
             values.setdefault('user_id', self.env.user.with_env(self.env))
             values.setdefault('res_company', self.env.company.sudo())
-
             values.update(
                 request=request,  # might be unbound if we're not in an httprequest context
                 test_mode_enabled=bool(config['test_enable'] or config['test_file']),
@@ -887,7 +905,7 @@ class IrQWeb(models.AbstractModel):
                 time=safe_eval.time,
                 datetime=safe_eval.datetime,
                 relativedelta=relativedelta,
-                image_data_uri=image_data_uri,
+                image_data_uri=self._get_converted_image_data_uri,
                 # specific 'math' functions to ease rounding in templates and lessen controller marshmalling
                 floor=math.floor,
                 ceil=math.ceil,