Interleave PDFs
Alternate pages from two PDFs, including reversed scans.
The list above shows the first and second file.
Reverse order helps when the backs were scanned from the last sheet first.
Your files and text are processed on your device.
How to use this tool and limits
Add exactly two PDFs. Choose which starts and the second file’s page order.
PDFs up to 120 MB and 500 pages; adding margins: up to 300 pages. Results depend on available memory. Encrypted PDFs are unsupported. Review forms and signatures after modifying a document.
Guides
Combine documents, supporting evidence and appendices into an ordered copy, then check it before sharing.
Rebuild double-sided scans by alternating files and correct back-side pages saved in reverse order.
Create alternating groups, count from the first sheet and run a test before manual double-sided printing.
Frequently asked questions
Are my files uploaded?
No. Your file and result are processed locally in your browser. No account is needed.
What should I check before sharing?
Add exactly two PDFs. Choose which starts and the second file’s page order.