Alternate Merge PDF

Choose two PDFs, select which file starts first, and alternate their pages while preserving any remaining pages.

PDF A

PDF B

Start with

When one PDF ends

Choose two PDFsUseful for front/back scans or interleaving two page sequences.

Core Before exporting the PDFs

Use a focused flagship page for the six highest-demand PDF jobs; specialist PDF tools remain available from the full hub.

All 44 PDF tools

Merge PDFCombine multiple PDFs Split PDFExtract ranges or separate pages Compress PDFReduce PDF file size PDF to JPGTurn PDF pages into images JPG to PDFTurn images into one PDF Organize PDFReorder, rotate or delete pages

Interleave order preview & reverse-scan planner

Preview the exact A/B page sequence before download, including reverse-B scan correction, multi-page turns and unequal-file tail behavior.

PDF A pagesPDF B pagesPages per turnStart withWhen one endsReverse PDF B order

—Output pages

—Opening pattern

—Unused pages

Ready.

PDF processing boundaries

These tools operate within browser memory and the capabilities of the browser PDF libraries used on this page. Encrypted, malformed, scanned, XFA, unusual forms, complex signatures, OCR-dependent documents, and advanced desktop-editor features can require specialist software. Always verify generated files before discarding the source.

How to use this Alternate Merge PDF

Choose two PDFs, select which file starts first, and alternate their pages while preserving any remaining pages.