疊加 PDF
將兩個 PDF 頁面疊加合併為一頁。適用於印章、背景與水印疊加。
Drag and drop files here, or click to browse
or
该文檔的内容会作为合并的基本骨架
Drag and drop files here, or click to browse
or
如公章、带有设计背景的信托网格、信笺等
Designed for Trust and Speed
PDFRunway handles your documents locally, keeping data secure and processing lightning-fast.
Easy to Use
Simple 3-step processes designed for speed, clarity, and non-technical users.
Fast & Reliable
High-performance local compilation keeps processing fast, secure, and responsive.
100% Secure
Your documents never leave your browser. Zero uploads, 100% client-side privacy.
Works Anywhere
Access the full suite on any browser, system, desktop, or mobile device.
使用方法
Follow these three simple steps to process your file in seconds.
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.
關於此工具
Overlay PDF allows you to layer pages of one PDF document on top or underneath another PDF document. It is perfect for applying letterheads, adding background grids, stamping watermarks, or fusing layout drafts together.
Supports both Overlay mode (layer goes on top) and Underlay mode (layer goes underneath). Specify custom target page ranges or loop shorter overlay documents to cover the entire base file automatically.
All processing is executed entirely inside your web browser locally, guaranteeing total security and data privacy.
使用場景
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.
常見問題
Have questions? Find quick answers about this tool here.
Overlay places the secondary layer on top of your main content. Underlay places it at the very bottom, acting as a background template.
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.
Yes, you can target specific pages using range syntax such as "1-5", "odd", "even", or comma-separated lists.