πŸ—‚οΈ Organize PDF

πŸ“„ Merge PDF

Combine multiple PDFs into one document in the order you choose.

Merge PDF combines two or more PDF documents into a single file. Your files are read locally, pages are copied in the order shown, and the finished document is ready to download in your browser.

πŸ“„ Merge PDF Files stay in your browser
πŸ“„
Drop PDF files here
or click to browse Β· Up to 25 files Β· 100 MB max

    Choose a file to begin.

    Tool guidance maintained by Leslie θ·― Updated November 6, 2026. Report an incorrect result.

    How to use Merge PDF

    1. Drag PDF files into the upload area or click to browse.
    2. Review the file order and remove any file you do not need.
    3. Click Merge PDF and wait for the browser to combine the pages.
    4. Preview the result and download the merged document.

    Features

    • Combine up to 25 PDF files at once
    • Preserve page order and page content
    • Browser-based page copying
    • Free to use with no account

    Worked example: Combine two documents and verify page order

    Tested October 17, 2026 with synthetic, non-sensitive files on this website. The files below are the inputs and actual browser-downloaded outputs from that test.

    Build one reading copy from a two-page document A and a one-page document B. The pages are visibly labeled so that omissions and ordering mistakes are easy to spot.

    Try the example

    1. Download A and B below.
    2. Choose A first, then B; verify that A precedes B in the file list.
    3. Merge and download the result. Check all three page labels.

    What we observed

    • The output had three pages in this order: ALPHA PAGE ONE, ALPHA PAGE TWO, BETA PAGE THREE.
    • The labels and page borders remained present in the downloaded result.

    When this is useful

    Combining ordinary document pages into one reading or sharing copy.

    Limits of this example

    These samples contain no interactive forms, digital signatures, or encryption. This test does not establish preservation of those features. A merged copy should not replace a signed original.

    Check your own output

    Add the input page counts and compare the sum with the output. Inspect the boundary between documents and the final page. If the list order is wrong, reset and select the files again in the intended order.

    Assemble a packet in a predictable order

    For a two-page cover note, a six-page report, and a three-page appendix, place those files in that order. The intended result is an eleven-page packet: the report starts at file position 3 and the appendix at position 9. These are planning counts, not a test result for your files.

    Review the boundary between each source document after downloading. Merge copies whole files; use Extract first if only part of a source belongs in the packet. Mixed page sizes remain possible. A new merged document is not a way to preserve or validate certificate-based signatures, and interactive fields and navigation need separate checking.

    Check the boundary between two merged documents

    Download the sample input below. The reference output was generated in a local processor test on November 6, 2026.

    Add the one-page file first and the three-page file second. Confirm their order in the file list. Select Merge PDF, then download your result.

    Check the result

    The merged copy should contain four pages labeled 1, 1, 2 and 3. Both inputs start with β€œSynthetic page 1”, so two consecutive copies of that label are expected.

    Download the reference output (PDF)

    Frequently asked questions

    Yes. Upload up to 25 PDF files and they are combined in the order shown in the file list.

    No. The original files stay untouched. A new merged PDF is created and downloaded.

    No. Everything happens in your browser and the files never leave your device.

    Each PDF can be up to 100 MB and you can merge up to 25 files at once. Processing happens on your device so larger files may take longer.

    Merge PDF copies all pages exactly as they appear. Interactive form fields and digital signatures may not carry over because the tool creates a new document.