Merge PDF
PopularNewCombine multiple PDF files into a single document in the order you choose - all processed locally in your browser.
Your files are processed entirely in your browser. Nothing is uploaded to any server, and your documents never leave your device.
What is Merge PDF?
A Merge PDF tool combines two or more PDF files into a single document. You control the order the files appear in the final PDF simply by dragging them into position. Because the merge happens entirely inside your browser using the pdf-lib library, your files are never uploaded to a server - making it safe for contracts, statements, and any confidential paperwork you need to bundle together.
Why use Nuo Tools's Merge PDF?
How to use Merge PDF
Add the PDF files you want to combine by dragging them in or clicking to browse.
Drag the files into the order you want them to appear in the final document.
Click Merge PDF to combine them into a single file.
Download your merged PDF - the whole process happens in your browser.
Frequently asked questions
Are my files uploaded to a server?+
No. The entire merge happens locally in your browser using JavaScript and WebAssembly. Your PDF files never leave your device, which makes this tool safe for confidential and sensitive documents.
How many PDFs can I merge at once?+
There is no fixed limit imposed by the tool. Because processing happens on your device, the practical limit depends on your available memory. Merging dozens of typical documents works smoothly on most computers and phones.
Can I change the order of the files?+
Yes. After adding your files, drag them up or down to set the order. The pages of each file are added to the final PDF in the exact order you arrange them.
Will merging reduce the quality of my PDFs?+
No. Merging copies the original pages into a new document without re-encoding them, so text stays sharp and images keep their original resolution.
Is there a watermark on the merged file?+
No. The merged PDF is clean, with no watermark, branding, or added pages. It is completely free to use.
When to use this tool
- →Combining separate invoices, receipts, or statements into one file for records
- →Bundling scanned pages that were saved as individual PDFs
- →Assembling a report from chapters or sections exported separately
- →Merging signed contract pages back into a complete agreement
- →Putting a cover letter, resume, and portfolio into a single application PDF