Privacy-first • 100% local processing
Merge PDF
Combine multiple PDF files into one — processed entirely in your browser. Drag to reorder. No upload. No storage. No cost.
Privacy: 100% Local
Drag to reorder
Unlimited files
Drag & drop PDF files here
Add multiple PDFs — drag to reorder before merging
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Status
Ready. Add 2 or more PDF files.
Privacy Notice
Processed in your browser. We do not upload, store, or log your files.
Merge Summary
Order & page count
Add PDFs to see merge summary
Total files
0
Total pages
0
Total size
0 KB
Output file
merged.pdf
FAQ
Common questions
Are my PDFs uploaded to a server?
No. Everything runs locally in your browser using PDF-lib. Your files never leave your device.
How do I change the order of the PDFs?
Drag and drop the files in the list to reorder them, or use the ↑ ↓ buttons. The order in the list is the order in the merged PDF.
Is there a limit on how many PDFs I can merge?
There is no hard limit. However, merging many large PDFs may be slower depending on your device's memory and CPU.
Will the bookmarks and links in my PDF be preserved?
Basic page content and layout are preserved. Some advanced features like interactive bookmarks, forms, and JavaScript may be removed during the merge process.
Can I merge password-protected PDFs?
No. Password-protected PDFs cannot be processed. Please remove the password protection before merging.
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