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Merge PDF
Combine several PDF files into a single PDF. Set the order by drag and drop – all right in your browser.
Files stay on your device Up to 50 files
Merge PDF
Combine several PDF files into one, in the order you choose.
Your files are processed directly in your browser and are not uploaded. They never leave your device.
How it works
Merge PDFs in three steps
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Add files
Drop two or more PDF files into the box or choose them.
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Set the order
Arrange the files by drag and drop or with the arrows. Open protected files with their password.
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Merge and save
Click "Merge PDF" and download the new file.
Merge PDF files without uploading them
Everything stays on your device
The tool works entirely in your browser. Your PDF files are not sent to a server. That matters especially for contracts, job applications or invoices.
Typical uses
- Combine a cover letter, CV and references into one application file
- Bundle several invoices or receipts for accounting
- Join scanned pages and a digital document into one case
- Send the appendices of a contract as a single PDF
Good to know
Pages, images and text are taken over unchanged. With some files, fillable form fields can no longer be edited after merging, so fill in forms beforehand.
More with PaperOffice AI
PDF work that happens by itself
PDF Studio in the AI-DMS merges, splits, compresses and converts – in the app, in workflows, via API and via MCP in Claude and ChatGPT.
- Merge, split, compress and PDF/A in one flow
- Automatically when new documents arrive, via workflow
- Via API and MCP from your own systems
- Then the AI reads, assigns and files
FAQ
Questions about merging PDFs
Are my PDF files uploaded?
No. Merging runs entirely in your browser. Your files never leave your device.
How many files can I merge?
Up to 50 files of at most 100 MB each, up to 250 MB in total. With very large files, it also depends on your device's memory.
Can I merge password-protected PDFs?
Yes, if you know the password. Enter it right in the file list. The merged file is no longer protected afterwards.
Is the quality preserved?
Yes. Pages are taken over unchanged; nothing is recalculated or compressed.
Does it work on a smartphone?
Yes, in any up-to-date browser on smartphones, tablets and computers.
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