Interleave Two PDFs (Alternate Pages)

Weave two documents into alternating order.

Interleave pages from two PDFs in alternating order instantly in your browser. Free alternator for double-sided feeds.

Calculator Inputs

Contributes pages 1, 3, 5…
Contributes pages 2, 4, 6…

About Interleave Pages

Weave two documents into alternating order.

Takes page 1 from file A, page 2 from file B, page 3 from file A, and so on until both files are exhausted.

Where it is used

Fixing half-scans printed back-to-back, pairing question/answer sets, slide + notes duplication.

How to use the Interleave Pages

  1. File A — select a file (application/pdf,.pdf) — Contributes pages 1, 3, 5….
  2. File B — select a file (application/pdf,.pdf) — Contributes pages 2, 4, 6….
  3. Calculate — press the Calculate button to see the result instantly above.

Formula

Merge by alternating one page from A, then B, repeating until exhausted.

Examples

Example

Result: A:3 + B:2 → A1 B1 A2 B2 A3

Frequently Asked Questions

Uneven lengths?
The longer file supplies the trailing pages alone.