- If you want to generate letters based on a PDF document, we advise you to first do a conversion to Word (doc) and then upload the document as a letter template.
- There are several possibilities to turn a PDF document into a Word document (both free and paid software).
https://www.pdftoword.com (PDF to Word Converter)
https://acrobat.adobe.com/be/en/acrobat/how-to/pdf-to-word-doc-converter.html (Adobe)