Merge PDF
Combine multiple PDFs into one. Drag to reorder.
Drop your PDFs here
or drag & drop files to browse from your device
How to use Merge PDF online free
- Upload two or more PDF files (up to 30 at once).
- Drag the thumbnails to put the files in the order you want.
- Click Merge and download your combined PDF instantly.
Why use PDFdecor?
- 100% free — no sign-up, no watermark, no trial limits.
- Private by design — files are encrypted in transit and auto-deleted after 2 hours.
- Works everywhere — Windows, Mac, Linux, Android, and iPhone, right in your browser.
- No software to install — no Adobe Acrobat needed.
Frequently asked questions
How do I merge PDF files into one?
Upload your PDFs to PDFdecor's free Merge PDF tool, drag them into the order you want, and click Merge. Your combined PDF downloads in seconds — no sign-up required.
How many PDFs can I combine at once?
You can combine up to 30 PDF files (100 MB each) in a single merge — enough for contracts, reports, scanned pages, and full document sets.
Is it free to merge PDF files online?
Yes. PDFdecor lets you merge PDF files completely free — no sign-up, no watermarks, and no software to install. It works in your browser on Windows, Mac, Linux, Android, and iPhone.
Are my files safe?
Yes. Files are transferred over an encrypted connection and automatically deleted from our servers after 2 hours. Nobody can access your documents.
Do I need to install any software?
No. PDFdecor runs entirely online in your web browser, so you can merge PDF files without installing Adobe Acrobat or any other desktop software.