Overlay PDF
Overlay or underlay pages from one PDF onto another. Perfect for stamps, letterheads, and layout composition.
Upload Base PDF
Upload Overlay PDF
About This Tool
Overlay PDF places one document's content on top of another — a form over its instructions, a watermark sheet over a document, or a template over blank pages. It is the stamping tool for PDFs that need repeating structure applied uniformly across a set of pages in a single run.
Accountants overlay the same expense-claim design onto multiple completed sheets so each form matches the corporate pattern. Printers overlay a crop-mark or registration layer onto artwork before output, and anyone applying a repeating signature block or footer template to a batch of pages benefits just as much. You choose which document is the base and which becomes the overlay, set the page range to apply, and control alignment so the overlay lands exactly where it belongs.
Both files stay in your browser during processing, so nothing is uploaded. The combined PDF is generated locally with the layout you configured. Free and unlimited.
Practical guidance before you use Overlay PDF
Best for real document workflows
Use Overlay PDF when you need a quick browser-based result without creating an account or sending routine documents through an unnecessary upload workflow. Corporate Letterheads is a common example: Layer invoice contents on top of standard company letterhead templates.
Privacy and file handling
EasyPDFNex prioritizes local processing in your browser. That means supported PDF operations run on your device, not in a public cloud queue. For sensitive files, review the output before sharing it, close the browser tab after downloading, and avoid processing documents you are not authorized to edit.
Quality checks after processing
After you compile and download, open the result and check page order, text readability, signatures, links, and form fields. If the source file is scanned, encrypted, very large, or damaged, try a related workflow such as merge pdf, add watermark, add page labels before repeating the task.
Start with a clean source file whenever possible. For Overlay PDF, the first step is usually "Upload Main PDF": Drag and drop your primary base PDF document. This simple preparation step prevents most failed exports, missing pages, and formatting surprises.
Editorial review note
This guidance is maintained by the EasyPDFNex editorial team and reviewed for practical PDF workflow accuracy. Tool pages are written to explain when a feature is useful, what to check before download, and where browser-based processing has limits.
How to Use
Upload Main PDF
Drag and drop your primary base PDF document.
Upload Layer PDF
Provide the overlay/underlay document that acts as the layer.
Configure Layering
Choose overlay or underlay mode, specify page ranges, and enable page looping.
Compile and Download
Click Compile to process and download the layered result PDF.
Use Cases
Corporate Letterheads
Layer invoice contents on top of standard company letterhead templates.
Watermarks & Seals
Overlay security stamps, signature seals, or backgrounds across documents.
Drawing Blueprints
Combine draft architectures or layout grids underneath text blocks.
Frequently Asked Questions
What is the difference between Overlay and Underlay?
Overlay places the secondary layer on top of your main content. Underlay places it at the very bottom, acting as a background template.
Can I loop the overlay layer?
Yes, if the layer PDF is shorter than the base document, enabling Loop will cycle it (e.g. page 1, 2, 1, 2) to cover all base pages.
Is page range supported?
Yes, you can target specific pages using range syntax such as "1-5", "odd", "even", or comma-separated lists.