Alternate Merge
Merge PDFs by alternating pages. Combine front and back scans into one document.
Drag and drop files here, or click to browse
or
Upload two or more PDF files to interleave their pages alternately.
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.
How to Use
Follow these three simple steps to process your file in seconds.
Upload Two PDFs
Upload the front pages PDF and back pages PDF.
Configure Order
Choose whether to reverse the second document for back-to-front scans.
Merge and Download
Click Merge to interleave pages and download.
About This Tool
Alternate Merge combines two PDFs by interleaving their pages alternately. This is perfect for combining separately scanned front and back pages into a single document.
Upload two PDFs and the tool will merge them by taking one page from each alternately. You can also reverse the order of one document for back-to-front scanning.
All processing happens in your browser, ensuring your documents remain private.
Use Cases
Duplex Scanning
Combine separately scanned front and back pages.
Document Assembly
Interleave pages from two related documents.
Book Scanning
Combine odd and even page scans into complete books.
Frequently Asked Questions
Have questions? Find quick answers about this tool here.
Extra pages from the longer document are appended at the end.
Yes, you can reverse either document before merging.
Yes, regular merge appends documents; alternate merge interleaves pages.