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invoicePress – e-Invoice Viewer — Upload & visualize e-invoices (ZUGFeRD, Factur-X, XRechnung) on your WordPress site
Let your visitors drop an electronic invoice onto your page and see it as a clear, structured
view instantly — without any external service and without storing the file. A standalone
WordPress plugin that reproduces the core function of the ZUGFeRD Quba viewer, right inside a simple
shortcode.
Whether you offer an e-invoice demo, a validation helper, or a customer-facing viewer, this plugin
reads ZUGFeRD / Factur-X PDFs and CII / UBL / XRechnung XML files and renders
every invoice field — optionally with the matching EN 16931 business-term numbers (BT-…). The
result is displayed inline via AJAX, inside a Shadow DOM, so
