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PDF Merger
Free PDF merger: combine multiple PDF files into one document in the order you choose. Runs in your browser, so your files stay private.
FreeRuns in your browserNo sign-up
PDFs are merged inside your browser and never uploaded.
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How to use the PDF Merger
- Add two or more PDF files.
- Move files up to set the order.
- Click Merge PDFs.
- Your merged file downloads.
Combine PDFs without uploading them
Merging joins the pages of several PDFs into one file, in the order listed. Contracts, invoices, certificates and reports often need to be sent as a single document.
Why browser-based merging is safer
Many online mergers upload your files to a server. This tool does the work on your device using the open-source pdf-lib library, so sensitive documents never leave it.
Limitations
- Password-protected PDFs must be unlocked first.
- Form fields and bookmarks may not carry over.
- Very large files depend on your device's memory.
Frequently asked questions
How do I merge PDF files?
Add the files, arrange them and click Merge PDFs.
Is there a page limit?
No fixed limit. Large files may be slow on older phones.
Can I merge password-protected PDFs?
Not directly. Remove the password first.
Are my PDFs uploaded?
No.