How do I reassemble a double-sided scan?

Scan the front sides as one PDF and the back sides as another. Upload the fronts as File A and the backs (reversed) as File B. The tool interleaves them into the correct order.

Can I mix more than two files?

The tool is designed for two files. For more complex merges, use the standard merge tool and reorder pages manually.

Alternate & Mix PDF

Interleave pages from two PDFs for double-sided scan reassembly.

Secure & Private

Fast Processing

No Installation Required

or drop files here

Files stay private. Automatically deleted after 2 hours.

How to Alternate & Mix PDF

Upload the first PDF (e.g., odd pages).

Upload the second PDF (e.g., even pages).

Download the interleaved PDF with pages in correct order.

Features

Odd/Even Page Interleaving

Reverse Second File Option

Custom Mix Patterns

Double-Sided Scan Fix

Frequently Asked Questions

Related Tools

View All Tools

Merge PDF Online Free

Combine multiple PDFs into one

Compress PDF Online Free

Reduce PDF file size online

Split PDF Online Free

Extract pages from PDF

Rotate PDF Online Free

Rotate PDF pages permanently

Need More Power?

Try our AI-powered chat interface for multi-step document workflows and batch processing.

Try DocuHub Chat