Thanks,

However Odoo told me that report_has_header_footer and report_last-page do not exist.

Hi,

Please refer to the code

<odoo>

    <template id="custom_internal_layout" inherit_id="web.internal_layout">

        <xpath expr="//div[@class='article']" position="after">

            <div class="footer">

                <t t-if="o.report_has_header_footer and o.report_last_page">

                    Page <span class="page"/> / <span class="topage"/>

                </t>

                <t t-else="">

                    Your custom text for the first page

                </t>

            </div>

        </xpath>

    </template>

</odoo>

Hope it helps.