Explore Tools

Merge PDF Files

Combine two or more PDF documents into a single file in the order you want. Fast, free, and your files never leave your device.

  • No upload: 100% private
  • Reorder files easily
  • No watermark, no limits
Drop PDF files here or click to choose Add two or more PDFs · combine them in any order · processed on your device

    How to use the Merge PDF tool

    1. Add your PDF filesDrag and drop the PDFs onto the box, or click to choose them from your computer or phone.
    2. Arrange the orderUse the up and down arrows to put the files in the order they should appear. Remove any file with the × button.
    3. Name your fileOptionally change the output file name, for example “contract-signed.pdf”.
    4. Merge and downloadClick “Merge PDF”. The combined document downloads automatically in seconds.

    Why merge PDFs with us

    • Your files stay privateMerging happens inside your browser. Documents are never uploaded, stored or seen by anyone else.
    • Original qualityPages are copied exactly as they are. Text stays selectable and images keep their full resolution.
    • Any number of filesCombine two files or twenty. There are no daily limits and no file-count restrictions.
    • Page count at a glanceSee how many pages each file has and the total before you merge.
    • Works everywhereUse it on Windows, Mac, Linux, Android or iPhone in any modern browser. Nothing to install.
    • Clean outputNo watermarks, no cover pages and no branding added to your document.

    When to merge PDF files

    Combining PDFs keeps related documents together so they are easier to send, print and archive. Instead of attaching five separate files to an email, you send one tidy document in the right order. Common examples include:

    • Joining a signed contract with its annexes and appendices.
    • Combining monthly invoices or bank statements into a single file for your accountant.
    • Putting a cover letter, CV and certificates together for a job application.
    • Assembling scanned pages, reports and presentations into one document for a meeting.
    • Uploading supporting documents to a portal that accepts only one file.

    How our PDF merger works

    When you add files, the tool reads each PDF in your browser and counts its pages. When you click Merge PDF, it copies every page, in the order you chose, into a brand-new PDF document and saves it to your device. The pages are copied as they are, so fonts, vector graphics, images, links and text selection are all preserved.

    Because everything happens locally, merging is fast even for large files: there is no upload or download wait, and your connection speed does not matter once the page has loaded.

    Tips for merging PDFs

    • Name files with numbers first (for example “01-cover.pdf”, “02-report.pdf”) so they are added in the correct order automatically.
    • Unlock protected files first. PDFs that need a password to open cannot be merged until the password is removed by their owner.
    • Convert images first. To include photos or scans, turn them into a PDF with our JPG to PDF converter and then merge.
    • Check the total size before emailing. Most email services limit attachments to around 20–25 MB.

    Is it safe to merge confidential PDFs online?

    With this tool, yes. Many PDF websites upload your files to their servers to process them, which means a copy of your document exists somewhere you do not control. Our merger is built differently: the processing runs entirely on your own device using JavaScript in your browser. Your contracts, medical records and financial statements are never transmitted, so there is nothing to intercept, store or leak.

    Frequently asked questions

    Is Merge PDF free?
    Yes. You can merge as many PDF files as you like for free, without signing up and without watermarks.
    Are my PDF files uploaded to a server?
    No. The files are merged inside your web browser and never leave your device.
    How many PDFs can I merge at once?
    There is no fixed limit. You can merge dozens of files; the practical limit is your device’s memory when working with very large documents.
    Can I change the order of the files?
    Yes. Use the up and down arrows next to each file to arrange them before merging. The final PDF follows the order shown in the list.
    Will merging reduce the quality of my PDF?
    No. Pages are copied without re-compressing, so text, images and layout stay exactly as they were in the original files.
    Why can’t I merge a password-protected PDF?
    Encrypted PDFs can only be read with their password. Remove the password first (you must be the owner or have permission), then add the file again.