Will the merged PDF keep bookmarks and formatting?

Yes, all page content and formatting is preserved. Bookmarks and interactive elements from the original PDFs are carried over.

Can I change the order of the PDFs?

Yes. Use the up/down arrow buttons next to each file to set the order before merging.

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Combine multiple PDF files into one. Drag to reorder, merge instantly in your browser — no upload, no signup, completely free.

🔒 100% Private — PDFs are merged using PDF-lib directly in your browser. Your files never leave your device.

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Drop PDF files here or click to browse

Add as many PDFs as you need — they'll appear below in order

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merged.pdf

Does this upload my PDFs to a server?

No. Everything runs in your browser using PDF-lib. Your files never leave your device.

How many PDFs can I merge?

No hard limit. 20–50 files work fine. Very large PDFs (100+ MB each) may be slow depending on your device RAM.

Can I reorder the PDFs?

Yes — use the ▲ ▼ buttons next to each file to move it up or down before merging.