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100% Private
Your PDF files are processed entirely in your browser. They are never uploaded to any server.
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Instant & Fast
Merging happens locally on your device โ no waiting for uploads or server processing.
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Drag to Reorder
Arrange your PDF files in any order by dragging the cards before merging.
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Always Free
No hidden costs, no watermarks, no file limits. Merge as many PDFs as you need.
How to merge PDF files
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Upload PDFs
Drop files into the box or click to browse
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Reorder Files
Drag the cards to set your preferred order
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Merge & Download
Hit Merge PDFs and download your file
Frequently asked questions
Are my PDF files safe when I merge them here?
Yes, completely. All merging happens inside your browser using JavaScript. Your files are never sent to our servers โ they stay on your device the entire time. We have zero access to your documents.
Is there a file size limit?
No. Because processing happens in your browser, the only limit is your device's available RAM. Most computers can handle PDFs of hundreds of megabytes without any issue.
How many PDFs can I merge at once?
There is no limit on the number of files. You can merge 2 files or 20+ files in one go. Just add them all and hit Merge.
Will the merged PDF have a watermark?
Never. We don't add watermarks, logos, or any modifications to your PDF. The merged file is a clean combination of exactly what you uploaded.
Can I change the order of the PDFs before merging?
Yes. After uploading your files, you can drag and drop them to arrange them in any order you like. The merged PDF will follow the order shown on screen.
What browsers are supported?
All modern browsers โ Chrome, Firefox, Safari, and Edge. No plugins or extensions needed. Just open the page and use it.