PDF / BROWSER-LOCAL

Merge PDF

Merge up to ten local PDFs in the selected file order.

Files stay on your device

Current limits: 1 input, 20 MiB, safe concurrency 1.

No files selected.

Batch limits are device safety and product limits. Local browser controls cannot prevent deliberate tampering.

    Ready. No file is uploaded.

    How to use this tool

    Choose multiple PDFs or use the generated samples. The displayed input order is the merge order. Run and download the combined document.

    Supported input and limits

    Unencrypted, structurally readable PDFs only; 20 MiB total input, 1–50 pages/document, at most 50 output pages. 60-second worker deadline. No password removal, OCR, signature preservation or guarantee for interactive forms/attachments. Review downloaded results. Up to ten source files.

    Frequently asked questions

    Can I merge encrypted PDFs?

    No. Password-protected PDFs are rejected; there is no password-removal feature.

    Are my files uploaded?

    No. A local browser worker processes your files. Names and contents are not stored or uploaded.

    How long are download links kept?

    Generated Blob URLs remain on this page until you clear or leave it. Save outputs before navigating away; the site has no server-side copy.

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