Firm Beacon

Free browser tool

Merge PDF files online

Combine multiple PDF files into one document. Arrange the order, merge the files, and download the result. Your PDFs stay on your device.

Select at least two PDF files. Files are read in your browser and are not uploaded or saved. You can add up to 50 files, with a combined size of 50 MiB.

Use a copy if a file has a digital signature. Merging may invalidate signatures and may not preserve interactive form fields or bookmarks. Review the downloaded PDF before sharing it.

PDF merger questions

Can I merge PDFs without uploading them?

Yes. This tool reads the selected PDFs in your browser. The files are not sent to Firm Beacon or saved by the tool. Loading this page still makes normal website and analytics requests. Analytics can record a merge action, but not your files, filenames or document contents.

How do I combine multiple PDF files into one?

Select two or more PDF files, arrange their order with drag and drop or the arrow buttons, select Merge PDFs, then download the combined file.

Do I need an account to merge PDFs?

No. The PDF merger works without an account or email address.

Why could a PDF fail to merge?

A PDF may be encrypted, damaged or unsupported by the browser library. Try opening it locally first or use an unencrypted copy. The tool accepts up to 50 files with a combined size of 50 MiB. The browser may still need more memory while processing the documents.

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