FFileForge
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Merge PDF

Runs in your browser

Combine multiple PDFs into one, reorder as needed.

Drop files here or click to browse

Add PDFs — pages will appear below in upload order.

About this tool

Combine contracts, scanned pages, reports, or any set of PDFs into a single document. Add files in any order, then merge — everything happens in your browser, so none of your documents are ever uploaded.

Frequently asked questions

Is there a limit to how many PDFs I can merge?
No hard limit — you can add as many PDF files as you like before merging, though very large combined files will take longer to process.
Can I reorder pages before merging?
Yes — pages from all added files appear in one grid that you can reorder before combining.
Will merging affect PDF quality?
No — pages are copied directly without re-rendering, so there's no quality loss.
Are my PDFs uploaded to a server?
No. Merging is done entirely in your browser using pdf-lib — your files never leave your device.