Best way to generate automated, nicely designed invoices in KNIME?

Hi everyone,

what is currently the best way to automatically generate professional-looking invoices in KNIME?

My setup:

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Data is stored in Google Sheets

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I want to fill a template automatically (Google Docs or similar)

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Output should be one PDF per customer

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Invoice needs a clean, modern design (logo, header, items table, totals)

I tried BIRT (Classic UI only) and the new KNIME Reporting extension, but I’m not sure what the recommended or most modern approach is today.

Question:

Is there a way to automate Google Docs templates from KNIME?

Or what is the best practice for creating nicely designed invoice PDFs?

Thanks for any suggestions!