Merge PDF
Combine multiple PDFs into one file, in the order you choose — nothing leaves your browser.
Drop in two or more PDFs, arrange them with the up and down arrows, and click merge — you get a single document with every page in the order you set. Each file shows its page count and size before you commit, so a 3-page cover letter never ends up buried behind a 40-page report by accident.
The merging happens with pdf-lib inside your browser, so contracts, invoices, and medical records are never uploaded to a server. That makes this safe for documents you would not email to a stranger — which is exactly what uploading to a typical "free PDF merger" amounts to.
How to merge PDF files
- 1
Drag and drop your PDF files onto the tool, or click to browse — add as many as you need.
- 2
Reorder the list with the arrow buttons and remove any file you don’t want.
- 3
Click "Merge PDFs" and the combined file downloads as merged.pdf.
Why use Nofolo’s merge pdf?
No upload — files stay on your device
Merging runs locally with pdf-lib. Sensitive contracts and records are never transmitted anywhere.
Reorder before you merge
Move files up or down and remove ones you added by mistake. The final PDF follows your list exactly.
Page counts up front
Every file shows its page count and size as soon as you add it, plus a running total for the merged result.
Keeps original quality
Pages are copied, not re-rendered — text stays selectable and images keep their full resolution.
No file limits or watermarks
Merge as many PDFs as your device memory allows. The output is clean, with no stamp added.
Works on any device
Runs in any modern browser on desktop, tablet, or phone — no software to install.
Frequently asked questions
Are my PDFs uploaded to a server?
No. The merge runs entirely in your browser using pdf-lib. Your files never leave your device — you can check the network tab and confirm nothing is transmitted.
Is there a limit on how many PDFs I can merge?
No fixed limit. Because everything runs locally, the practical ceiling is your device memory. Dozens of typical documents merge without trouble on an average laptop.
Will the merged PDF lose quality?
No. Pages are copied directly into the new document rather than re-rendered, so text stays selectable and images keep their original resolution.
Can I change the order of the files before merging?
Yes. Use the up and down arrows next to each file to arrange them. The merged PDF follows the list order from top to bottom.
Why does one of my files show an error?
Password-protected PDFs cannot be read without the password, so they are flagged and skipped. Remove the password first, then add the file again.
Related tools
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Shrink PDFs to fit email and upload limits — with an honest lossless mode and a strong mode for big scans.
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Fix upside-down scans for good — rotate single pages or the whole PDF and save it properly.
JPG to PDF
Turn photos and scans into a single tidy PDF — pick the page size, set margins, done.