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Your PDFs

Whole files are merged in displayed order. Page sizes and rotations are kept.

Your documents stay on your device. No uploads.

Or drop PDF files here. For JPEG or PNG conversion, choose the Images to PDF tool instead.

Supported form fields stay editable in the output. Encrypted PDFs, XFA forms, and digital signatures are not supported.

    Add PDFs to get started.

    Discard this work?

    This clears the current inputs and output from this tab. Original files and downloaded copies are unchanged.

    How to merge PDF files

    1. Add your PDF files and wait for local validation.
    2. Arrange whole files in the order you want, using Move up/down or dragging.
    3. Review the preservation notice, merge your PDFs, and choose Download PDF.

    Each file contributes all its pages. The output keeps page sizes and rotations without rasterizing pages. Supported form fields stay editable; same-named fields from separate inputs are renamed to stay independent. Review the downloaded PDF. Encrypted PDFs, XFA forms, and detected digitally signed files are not supported; annotations, bookmarks, and other document features may not be preserved.

    PDFBurrow processes your documents in this browser, without uploading them.

    Files stay in this tab's memory. Refreshing or closing the tab loses your work; original files and downloaded copies are unchanged. Browser leave warnings are best effort.

    Experimental build: provisional workload limits are enforced, but are not device-tested safety guarantees. Complex files may still exhaust browser memory. Offline use is not promised.

    Source codePrivacyLicenses/noticesWorkload limits

    These links open in a new tab without discarding your work.

    Discard this work?

    Changing tools or returning Home clears inputs, settings, outputs and unlocked signing keys from this tab. Save any encrypted key backup and proof first. Original files and downloaded copies are unchanged.