Merge PDF
Combine multiple PDFs into one, in the order you choose.
Drag & drop files, or click to select
2–20 files · .pdf
Files never leave your device
Combine up to 20 PDF files into a single document in seconds. Drag your files in, arrange them in exactly the order you want with the up/down controls, and download one merged PDF. Page sizes, orientations, and formatting are preserved exactly as they were in the source files.
Unlike most online PDF mergers, this tool never uploads your documents. The merging happens on your own computer, inside your browser — which makes it safe for contracts, medical records, financial statements, and anything else you wouldn't email to a stranger.
How it works
- 1Select or drag in your files
- 2Choose your options and click “Merge PDF”
- 3Download the result — everything ran in your browser
Frequently asked questions
Is it safe to merge confidential PDFs here?
Yes. Your file is processed entirely in your browser using JavaScript — it is never uploaded to a server, so nothing can be stored, leaked, or read by anyone else.
Can I change the order of the files before merging?
Yes. After adding files, use the arrow buttons next to each file to reorder them. The merged PDF follows the exact order shown in the list.
How many PDFs can I combine at once?
Up to 20 files per merge. If you need more, merge in batches — the output of one merge can be used as an input for the next.
Does merging reduce the quality of my PDFs?
No. Pages are copied into the new document without re-compression, so text stays sharp and images keep their original resolution.