Local Tools

Change language?

Changing language will clear the input on this page, including any selected image and results. Continue?

PDF tools

Merge PDF files

Drop PDF files here

Up to 20 PDFs · 25 MB each · 50 MB total · 200 pages

Documents stay in this browser. No upload.

    Exports copy static page contents into a new PDF. Interactive annotations, forms, bookmarks and attachments are not retained; signatures will not remain valid. This is not a security sanitizer. Keep your originals.

    Choose a PDF to begin.

    Help & FAQs

    Bring chapters, scans or reports together in one document. Add PDFs, review their page counts and choose the file order before exporting.

    How to merge PDFs

    1. Choose the PDFs you want to combine. Content is checked locally.
    2. Move documents earlier or later, or drag them into the desired order. Remove any file you do not need.
    3. Create the PDF, check the total page count and download the result. Keep your originals.

    Page order and file limits

    All pages of each document are copied in the displayed file order. Mixed page sizes and existing page rotations remain; this tool does not convert every page to one paper size.

    The limits are 20 documents, 25 MB per PDF, 50 MB combined input, 200 pages and 50 MB output. Processing is sequential with cancellation checks and a 45-second budget; a single library operation cannot always be interrupted immediately.

    What the new document retains

    Page contents are copied without rasterizing text or images. Interactive annotations, form fields, bookmarks and document attachments are not retained. A signed original cannot keep its signature validity after merging.

    Encrypted files are rejected. Some unusual or damaged PDFs may also be unreadable. The tool does not guarantee PDF sanitization, archival compliance or acceptance by another website. Open your downloaded result to check it.

    Common questions

    Are my PDFs uploaded?

    No. Files, their names and page contents stay in the browser workspace. Leaving or resetting it clears the local selection.

    Can I reorder individual pages here?

    This tool orders complete documents. Use PDF split to extract pages in a chosen order before merging.

    Will merging reduce the file size?

    Not necessarily. This is a page organization tool, not a PDF compressor; the actual output byte count is shown.