Add Letterhead to PDF

Letters and invoices exported from accounting or mail-merge software often come out on blank pages. This tool puts your company letterhead — a full-page PDF template or a logo/header image — onto every page, only the first page, or a different design for follow-on pages, the way printed stationery works. The same tool adds background templates, watermark-style overlays and footer bands. It runs in your browser, so business documents stay on your device.

How to use this tool

1. Choose the PDF documents to put on letterhead.
2. Choose the letterhead: a PDF (page 1 is used; page 2 too for follow-on pages) or a PNG/JPG image.
3. Put it behind the content (normal stationery) or on top — "blended" keeps the text readable on pages with a white background.
4. Pick the pages and the size, check the preview, and download.

Formula

The letterhead is embedded once as a form object (PDF) or image and drawn on each chosen page. Behind = its drawing commands go before the page's own content; on top = after it. Automatic size: same proportions as the page → stretched to fill; at least 1.5× wider than the page shape → full-width band at the top; otherwise fitted inside and centred.

Rotated pages are handled: the letterhead is placed upright as the page is shown. A PDF letterhead contributes its visible area (crop box), so a template exported with bleed still lines up. The text of your document stays selectable and searchable because nothing is rasterised.

Example

An A4 letterhead PDF (595 × 842 pt) on an A4 invoice is stretched 1:1 — it lines up exactly. A 2480 × 400 px PNG header band on the same page is drawn 595 pt wide and 96 pt tall at the top edge (595 × 400 ÷ 2480 = 96).