PDF Tools v2.1.0
Merge PDF
Combine multiple PDFs into one document.
📄
Drop PDF files here or click to browse
Select multiple PDFs to merge
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Our PDF merger lets you combine unlimited PDF files into a single document without any quality loss. Simply drag and drop your files, arrange them in the order you need, and download the merged result. Everything happens in your browser — your files are never uploaded to any server, keeping your sensitive documents completely private.
Features
Combine unlimited PDFs into one
Drag to reorder pages
Preview before downloading
No file size limits for merging
Works offline after first load
Frequently Asked Questions
Is it safe to merge PDFs online?
Yes — our PDF merger runs entirely in your browser. Your files never leave your device and are never uploaded to a server.
Does merging PDFs reduce quality?
No. Pages are combined without re-encoding or compression, so the merged file looks exactly like the originals.
How many PDFs can I merge at once?
You can merge up to 20 PDF files in a single operation. Each file can be up to 100MB.
Can I merge password-protected PDFs?
If the PDF has an owner password (no password needed to open), you can merge it directly. If it requires a password to open, enter it first and then merge.
Will the merged PDF keep my bookmarks?
Bookmarks from individual PDFs are preserved in the merged document, so you can still navigate easily.