TToolFlow

PDF Merger

Combine several PDFs into one ordered document.

Runs in your browserUpdated Nov 1, 2026Free forever
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How to use the PDF Merger

1

Choose your file

Select a PDF from your device. The file is read directly in the browser, so you can confirm the page count and size before continuing.

2

Set the options

Pick the pages, order or naming you need. Options are applied to a copy, leaving the original untouched.

3

Process and download

Run the action, review the preview or file summary, and save the result. If several files are produced, download them together as a ZIP.

What PDF Merger is for

Drop two or more PDF files, arrange them in the order you need, and download a single combined document. Page sizes are preserved by importing each source page into a new file.

The PDF Merger is part of the PDF collection on ToolFlow. It is designed for one concrete job: combine several PDFs into one ordered document. Everything runs client-side, so you can use it with sensitive material without creating a copy on someone else's server.

Common use cases

  • Bundle invoices into one monthly PDF
  • Join scanned chapters into a book
  • Assemble a portfolio from separate exports

Good to know

  • No account is required, and there is no usage limit on the browser tool.
  • Processing happens locally. Files are read from disk and the result is written back to your downloads folder.
  • Results are reproducible: the same input and options produce the same output, with no hidden server round-trip.
  • If the tool needs a live data source, the page states it explicitly instead of silently failing.

PDF Merger FAQ

The questions people ask before using this tool.

No. The PDF tools process the file inside your browser using client-side JavaScript. Nothing is transmitted, stored or logged, and closing the tab clears the data.