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PDF Merger
Combine multiple PDF files into one document. Reorder pages, merge, and download — entirely in your browser.
About PDF Merger
Upload two or more PDF files, arrange them in the order you want, and download a single merged document. All processing happens locally — your files never leave your device.
Features
- Merge unlimited PDF files in one session
- Reorder files before combining
- Drag-and-drop or file picker upload
- Download the merged PDF instantly
- 100% client-side — no uploads to a server
How to use
- 1Add PDF files by dragging them in or clicking to browse.
- 2Use the arrow buttons to set the merge order.
- 3Click Merge & Download to save the combined PDF.
Frequently Asked Questions
Are my PDFs uploaded to a server?
No. Merging runs entirely in your browser using pdf-lib. Your documents never leave your device.
Can I merge password-protected PDFs?
Password-protected or encrypted PDFs may fail to load. Remove the password with a PDF tool first, then merge here.
Is there a file size limit?
There is no fixed limit, but very large files depend on your browser memory. For huge documents, merge in smaller batches.
Related PDF Tools
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- PDF Page ExtractorExtract specific pages from a PDF into a new file.