🔗 Merge PDFs
Combine multiple PDF files into one
Combine multiple PDF files into a single PDF document in seconds. Upload your files, arrange them in the order you want, and merge — all in your browser, with no server upload and no sign-up.
What is a PDF Merger?
A PDF merger combines two or more PDF files into a single PDF document. You upload the PDFs, specify the order they should appear, and download a single merged file. This is useful for combining multiple chapters of a document, attaching supporting files, combining reports, or assembling multi-part forms.
Why Use Utilo's PDF Merger?
- ✓Combine any number of PDF files into one
- ✓Drag to reorder PDFs before merging
- ✓Preserves all original pages at original quality
- ✓In-browser processing — files never uploaded to server
- ✓No file size or page count limits
- ✓Free and unlimited, no account required
Key Features
How to Merge PDF Files
- 1Upload all the PDF files you want to merge
- 2Drag to arrange them in the order you want in the final PDF
- 3Click Merge PDFs
- 4Download the combined PDF file
Frequently Asked Questions
How many PDF files can I merge at once?
There is no hard limit. Upload as many PDFs as you need and they will all be combined into a single document.
Can I change the order of the PDFs?
Yes. Drag the files in the upload queue to reorder them before merging. The output PDF will follow that order.
Will the merged PDF lose quality?
No. Our tool preserves all original pages at their original resolution and quality in the merged output.
Can I merge password-protected PDFs?
No. Password-protected PDFs must be unlocked (decrypted) before they can be merged.
Are my PDF files uploaded to your server?
No. The PDF-lib library processes all files locally in your browser. No file is transmitted to or stored on our servers.