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Merge PDF

Combine multiple PDF files into one. Drag to reorder, then merge. Free, fast, 100% browser-based — no uploads.

Drop PDF files here or tap to upload
Select multiple PDFs to merge · No size limit

Frequently Asked Questions

How do I merge multiple PDFs?

Upload two or more PDF files, drag to set the order you want, then click Merge. The combined PDF downloads automatically.

Is there a file size limit?

No hard limit. Since everything runs in your browser, it depends on your device's memory. Most devices handle 50+ MB easily.

Can I reorder the pages?

You can reorder entire files by dragging. For page-level reordering within a single PDF, use a dedicated PDF editor.

Are my files uploaded to a server?

No. Everything runs locally in your browser using the pdf-lib library. Your files never leave your device.