Overlay & Letterhead
Apply Letterhead Backgrounds and Watermark Overlays to PDF
Drag and Drop PDF files here
Fast, 100% private in-browser processing. Your files never leave your device.
Combine corporate letterheads, background stamps, and grid templates onto existing PDF documents seamlessly.
How to use Overlay & Letterhead
Upload Main PDF
Select the document content.
Upload Letterhead PDF
Select your company letterhead or background template.
Merge Overlay
Apply the letterhead across all pages and download the finished branded PDF.
Key Features & Capabilities
Corporate Branding
Stamp professional company letterheads onto plain invoices and statements.
Background & Foreground Stamping
Choose whether the template sits beneath text or overlays as a stamp.
Frequently Asked Questions
Does overlay work with multi-page letterheads?
Yes, multi-page backgrounds can be cycled or applied to page 1.
🔒 100% Client-Side Privacy Guarantee
OM PDF processes all documents entirely in your web browser memory using WebAssembly. Your files are never uploaded to any cloud server, preventing data leakage and guaranteeing total security for confidential documents.