Convert Gmail Emails to Branded PDFs

I need every selected Gmail message turned into a polished PDF that carries my official letterhead for professional correspondence. The finished file has to open with my company logo in place and retain the original email body, subject line, date, and sender/recipient fields exactly as they appear in Gmail.

A reusable workflow is essential—I’d like to click once (or run a short Google Apps Script) and receive a ready-to-send, letter-headed PDF without extra formatting. Adobe Acrobat or native Google Workspace tools are both fine, so long as the final output is consistent and printer-friendly.

Deliverables
• A PDF letterhead template that embeds my logo at the top of each page
• An automated method or clear, repeatable steps for exporting Gmail emails into that template
• A brief user guide so I can run the process myself whenever needed

Accuracy in branding and layout outweighs speed; the document has to look like it left official stationery, not an exported email. Let me know how you’ll approach the template setup inside Gmail and any third-party tools you plan to integrate.