Overlay PDF, Add letterhead and stamps for free online
Overlay two PDFs: Add your letterhead, stamp, or watermark to every page of a document. Choose between foreground and background mode, free, no registration.
Overlay PDF: Add letterhead, stamps, and watermarks
With PDF Monster, you can overlay two PDF files. Perfect for placing your company letterhead on every page of a document, adding a stamp, or inserting a watermark as a background. Choose whether the overlay should be in the foreground or background, the overlay pages are automatically applied to all pages.
How it works, Overlay PDF in 3 steps
Upload 2 PDFs
Upload the base PDF (content) and overlay PDF (letterhead/stamp).
Choose mode
Choose whether the overlay should be in the foreground or background.
Download
Download the finished combined PDF.
Why PDF Monster for overlay?
Add letterhead
Add your company letterhead to every page.
100% Secure
SSL encryption, automatic deletion after 1 hour.
Foreground or background
Choose whether the overlay is placed above or below the content.
Automatic repetition
A single overlay page is automatically applied to all pages.
Your data is safe with us
Data security is the top priority at PDF Monster. We know you entrust us with confidential documents, and we take this responsibility seriously.
GDPR-compliant
All processes comply with the European General Data Protection Regulation. Your data is used exclusively for processing and never shared with third parties.
German servers
Processing takes place on servers in Germany. Compliance with GDPR and European data protection standards is guaranteed.
SSL encryption
All data is transmitted via a 256-bit SSL-encrypted connection. Third parties cannot access your files during upload.
100% Free
No hidden costs, no subscription model, and no registration required. After processing, your files are automatically deleted.
Typical use cases for PDF overlay
Add letterhead
Place your company letterhead with logo, address, and contact details on every page of your business letters, invoices, and proposals. This gives all documents a uniform, professional appearance.
Add stamps
Add a digital stamp like "APPROVED", "REVIEWED", or "COPY" to your PDF documents. Ideal for digital approval of contracts, reports, and internal documents.
Place watermarks
Place a transparent watermark as a PDF overlay in the background of your documents. Perfect for marking drafts or protecting intellectual property.
Prepare forms
Combine form templates with content to create completed forms. Place the form frame as an overlay over the entered data, quickly and without manual effort.
Apply templates
Apply a uniform design template to multi-page documents. Whether borders, headers and footers, or background patterns, the overlay is automatically applied to all pages.
Brand documents
Add your company's corporate design to your PDF documents. Place logo, colors, and design elements consistently on all pages for a professional appearance.
Frequently asked questions about PDF overlay
Everything you need to know about overlaying PDFs
What is a PDF overlay?
An overlay places one PDF file on top of another. For example, you can place your company letterhead on every page of a document.
What is the difference between foreground and background?
In foreground mode, the overlay is placed over the content (e.g., for stamps). In background mode, it is placed behind the content (e.g., for letterheads).
What happens if the overlay has fewer pages?
The last page of the overlay is automatically repeated for all remaining pages of the base document.
Is the text in the base document preserved?
Yes, the text and all content are fully preserved. The overlay is only added as an additional layer.
Can I combine more than two PDFs?
Per operation, you can combine one base PDF and one overlay PDF. For additional overlays, repeat the process with the result.
Overlay PDFs, without software, right in your browser
PDF Monster offers you a complete collection of free PDF tools. Besides overlaying PDFs, you can also add watermarks, merge documents, edit with the PDF editor, or discover all other tools. All tools work directly in your browser, are GDPR-compliant, and require no installation or registration.