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Your files never leave this page. All processing runs in your browser. No uploads. No account. No logs. GDPR Article 25 compliant · Governed under Irish Data Protection Act 2018 · Operated by Priya Life Science
🛡️ 100% Client-Side ProcessingFiles Never Leave Your DeviceCompliant with GDPR Article 25 (Privacy by Design)Governed under Irish Data Protection Act 2018Managed by Priya Life Science IrelandGxP Pharma Compliant Architecture

Alternate Merge

Merge PDFs by alternating pages. Combine front and back scans into one document.

Your files never leave this page. All processing runs in your browser. No uploads. No account. No logs. GDPR Article 25 compliant · Governed under Irish Data Protection Act 2018 · Operated by Priya Life Science

Upload PDF Files

Upload two or more PDF files to interleave their pages alternately.
Max files: 10

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.

How to Use

  1. Upload Two PDFs

    Upload the front pages PDF and back pages PDF.

  2. Configure Order

    Choose whether to reverse the second document for back-to-front scans.

  3. Merge and Download

    Click Merge to interleave pages and download.

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

What if documents have different page counts?

Extra pages from the longer document are appended at the end.

Can I reverse page order?

Yes, you can reverse either document before merging.

Is this different from regular merge?

Yes, regular merge appends documents; alternate merge interleaves pages.

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Priya LifePDF is a free, open-source tool operated by Priya Life Science, Ireland. Source code: GitHub. Licensed under AGPL-3.0.

No files are transmitted, stored, or processed on any server. All operations run locally in your browser using WebAssembly and JavaScript. This tool complies with GDPR Article 25 (Privacy by Design) and the Irish Data Protection Act 2018.

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