Hi,

I'm trying to setup, that the header (our company logo) will only be displayed on the first page.

I have researched a lot and just founded solutions for older versions (v10 & lower) or I just wasn't able to set it up.

It's regarding Odoo V12.

Update: 

After changing the code, the Header & Footer are completely gone on all pages. Just in the preview it will be displayed, but not if I download the PDF. 
I have already re-installed the Wkhtmltopdf 0.12.5–1 extension & also checked the report url inside the system parameters (this is already set to http://127.0.0.1:8069) - no success.

Our template which we are using (UPDATED @27 December)

<?xml version="1.0"?>

<t t-name="l10n_de.external_layout_din5008">
            <t t-if="not o and doc">
                <t t-set="o" t-value="doc"/>
            </t>
            <t t-if="o and 'company_id' in o">
                <t t-set="company" t-value="o.company_id.sudo()"/>
            </t>
            <t t-if="not o or not 'company_id' in o">
                <t t-set="company" t-value="res_company"/>
            </t>
            <div>
              <t t-call="web.basic_layout"> 
              <t t-set="o" t-value="o.with_context(lang=o.partner_id.lang)"/>
              <div class="page">
                <div class="header">
                    <img t-if="company.logo" t-att-src="image_data_uri(company.logo)" class="float-left" style="margin-left:95px !important; max-height:75px !important;"/>
                </div>
              </div>
              </t>
                <div class="article din" t-att-data-oe-model="o and o._name" t-att-data-oe-id="o and o.id">            
                        <t t-raw="0"/>
                </div>
                               <div class="footer o_background_footer din" style="position:absolute !important; left:0mm !important; right:0mm !important; width:100% !important; height:542mm !important; background-color:#0870b0 !important; bottom:auto !important;">
                  <div style="height:20px !important; width:100%;">                    

                  </div>
                  <div style="color:white; margin-left:95px; width:auto; height:auto; font-family:Arial !important; font-size:0.8em !important; float:left !important;">
					just some text here
                  </div>
                  <div style="color:white; margin-left:65px; width:auto; height:auto; font-family:Arial !important; font-size:0.8em !important; float:left !important;">
					just some tex there
                  </div>
                  <div style="color:white; margin-left:65px; width:auto; height:auto; font-family:Arial !important; font-size:0.8em !important; float:left !important;">
					just some text here 
                    Seite <span class="page"/>/<span class="topage"/>
                  </div>
                </div>
            </div>
        </t>