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Free PDF tool · Private by design

Merge PDF files

Combine two or more PDFs into one document. Choose your files in the order you want them to appear, then download your merged PDF.

Drop your PDF files here

or choose files from your device

    Choose PDF files to get started
    🔒 Your PDFs are processed on this device. PDFSathi does not upload your documents.

    How to merge PDF files

    1. Choose at least two PDF files from your device.
    2. Check the list order. The files are combined in the order you add them.
    3. Select Merge PDFs, then save the combined document.

    When is merging PDFs useful?

    Combining related files can make a packet easier to share: for example, a report with its appendix, a set of application forms, or meeting notes with reference material. Keep a copy of the originals so you can edit or rearrange them later.

    Frequently asked questions

    Is there a file count limit?

    There is no server-side count limit. Your browser memory and device performance are the practical limits; for very large documents, merge a few at a time.

    Will my PDF formatting change?

    Pages are copied into a new PDF. Most page content is retained, but interactive form fields, signatures or document metadata may not behave the same in the merged result. Review important files before sharing.

    Read our complete guide to merging PDFs →