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PDF Merge Tool

Combine multiple PDF files into a single document — in the order you select them. Everything happens in your browser.

Drag PDF files here or

Select two or more PDF files. You can drag and drop them to change the merge order.

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    How to use PDF Merge

    1. Pick two or more PDF files.
    2. Order is the order you selected them — drag-select carefully.
    3. Click Merge and Download.

    What is PDF Merge?

    Merging PDFs is one of the most common document tasks — combining a cover letter and résumé, stitching together a multi-source report, or consolidating receipts. This tool uses pdf-lib in your browser; your files never upload to a server.

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    FAQ

    How big can my PDFs be?
    Practical limit is browser memory — typically up to a few hundred MB total. Larger needs a dedicated desktop tool.
    Are encrypted PDFs supported?
    We open them in ignore-encryption mode for merging. Password-protected restrictive PDFs may fail or lose features.

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    Author

    1S
    1Stop Tools"The Toolsmith"

    Editorial Team at 1Stop Tools

    The 1Stop Tools editorial team tests, reviews, and curates every utility on this platform. We believe tools should be free, fast, and private, with no accounts, no uploads, and no tracking. Every tool on this site runs entirely in the browser, and we test on multiple devices and browsers to ensure reliability for everyone, everywhere, on any connection.

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