I need to customise the invoice format : header , footer , page , and replace the existing one. I tried with this solution , but when printing the invoice , I got an empty document. Any help please ? Here is my code :

<?xml version="1.0" encoding="utf-8"?>

<odoo>

    <data>

        <record id="account_invoices" model="ir.actions.report">

            <field name="name">Invoices</field>

            <field name="model">account.move</field>

            <field name="report_type">qweb-pdf</field>

            <field name="report_name">my_module.report_invoice_with_payments</field>

            <field name="report_file">my_module.report_invoice_with_payments</field>

            <field name="print_report_name">(object._get_report_base_filename())</field>

            <field name="attachment">(object.state == 'posted') and ((object.name or 'INV').replace('/','_')+'.pdf')</field>

            <field name="binding_model_id" ref="model_account_move"/>

            <field name="binding_type">report</field>

            <field name="groups_id" eval="[(4, ref('account.group_account_invoice')),

 (4, ref('account.group_account_readonly'))]"/>

        </record>

 <template id="report_invoice_with_payments">

            <t t-call="web.html_container">

                <t t-foreach="docs" t-as="o">

                <div class="article" t-attf-data-oe-model="account.move" t-attf-data-oe-id="{{o.id}}">

                </div>

                    <t t-set="lang" t-value="o.invoice_user_id.sudo().lang if o.move_type in ('in_invoice', 'in_refund') else o.partner_id.lang"/>

                    <t t-set="print_with_payments" t-value="True"/>

                    <t t-if="o._get_name_invoice_report() == 'my_module.new_report_invoice_document'"

                        t-call="my_module.new_report_invoice_document" t-lang="lang"/>

                </t>

            </t>

        </template>

</data>

</odoo>

<template id="new_report_invoice_document">

            <t t-call="web.external_layout">

....

</template>