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Merge PDF Files

Combine multiple PDF files into one document instantly. Free, no watermark, no signup — runs in your browser.

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Drop PDF files here
Select multiple PDFs — merged in the order you select them · Max 20 files
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merged.pdf

Free PDF Merger — Combine PDFs Online

Merge reports, chapters, invoices, or any PDFs into one clean file. Uses pdf-lib entirely in your browser — your documents never touch a server.

How many PDFs can I merge?
Up to 20 PDF files per operation.
Is there a file size limit?
Up to 100MB per file works reliably on modern devices.
Will the merged PDF have a watermark?
Never. Zero watermarks, always.
Can I reorder files?
Select files in the correct order. Use × to remove unwanted files and re-add them.
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