I want to edit the default header & footer of the Invoice PDF reports. The view of the report is calling web.external.layout for header & footer when I try to make changes to the web.external.layout then it is not accepting the changes.
View of Invoice PDF reports is as below.
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<?xml version="1.0"?>
<data inherit_id="account.report_invoice_document">
<xpath expr="//t[@t-call='web.external_layout']" position="replace">
<t t-call="web.external_layout">
<t t-set="o" t-value="o.with_context({'lang': lang})"/>
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it calling web.externa_layout for header & footer.
I really don't know whether it is for header/footer or not. I want to edit the default header & footer and don't want to create a new one.
Currently, I am using Odoo V12.
Hope you are looking this one: http://learnopenerp.blogspot.com/2018/10/how-to-add-custom-header-and-footer-in-qweb-reports-in-odoo.html