Merge PDF
Combine multiple PDF files into one
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Frequently Asked Questions
Is the PDF merge tool free?
Yes, completely free. No signup, no watermark, no file limits.
Are my PDF files uploaded to a server?
No. All merging happens in your browser using pdf-lib. Your files never leave your device.
Is there a limit on how many PDFs I can merge?
No hard limit, but very large files may be slow due to browser memory.