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Merge PDF

Combine multiple PDF files into one document. Drag to reorder before merging.

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Drop files here or click to browse
Accepts: .pdf,application/pdf

How to Merge PDF Files Online

Three steps — no account, no software, no waiting.

1
Upload your PDFs
Select two or more PDF files from your device. Drag and drop or click to browse.
2
Arrange the order
Files merge in the order listed. Review before clicking merge.
3
Download merged PDF
Click Merge and download your combined PDF instantly — no watermark.

Why use PDFDocker?

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Merge unlimited PDFs
Combine as many PDF files as you need into a single document.
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100% private
Files are processed entirely in your browser — nothing is uploaded to any server.
Lightning fast
PDFs are merged instantly using client-side processing — no waiting for uploads.
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Completely free
No subscription, no watermark, no file size limit. Merge PDFs for free forever.

Frequently asked questions

How do I merge PDF files online for free?
Upload your PDF files to PDFDocker, arrange them in order, and click Merge. Your combined PDF downloads instantly — no sign-up required.
Is there a file size limit for merging PDFs?
No. PDFDocker merges PDFs of any size directly in your browser with no file size restrictions.
Will the merged PDF have a watermark?
Never. PDFDocker adds no watermarks to merged PDFs. The output is a clean, professional document.
Can I merge more than 2 PDFs at once?
Yes. You can merge as many PDF files as you like in one operation.

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