Merge PDF
Combine multiple PDF files into one document in your chosen order.
- Free, no sign-up
- No watermark
- Files deleted automatically
or drop files here · paste with Ctrl+V
Up to 20 files, 1 GB each
Suggested tools
About Merge PDF
Merge PDF combines several PDF files into one document in exactly the order you choose — handy for joining scanned pages, invoices, report chapters or application documents into a single upload.
Pages are copied without being re-compressed, so text stays sharp and images keep their quality. If one of the files is password-protected or damaged, you get a clear message saying which problem to fix. Files are sent over HTTPS, processed on our server and deleted automatically after you download the result.
How to use Merge PDF
- Upload two or more PDFs.
- Arrange them in order by dragging, using the arrows or sorting A–Z.
- Press Merge and download the combined PDF.
Key features
- Combine any number of PDFs into one
- Choose the exact order
- No loss of quality
- Clear errors for protected or damaged files
When to use Merge PDF
- Combining an application form, ID proof and certificates into the single PDF a portal asks for.
- Joining monthly statements or invoices into one file for an accountant.
- Putting chapters or sections from different people together into one report.
Tips and common problems
- Name your files 01-, 02-, 03- and use Sort A–Z to get the right order quickly.
- Remove passwords from protected files first with Unlock PDF.
- If the merged file is too large, compress or reduce the images in the biggest input file.
Frequently asked questions
Remove its password first with Unlock PDF (you need to know the password), then merge.
Extract the pages you need with Extract Pages first, then merge the result with the other files.
Page content is copied exactly, but document-level features such as bookmarks and form fields from the original files may not be carried over.
Guides
- How to Merge PDF Files — Learn how to combine multiple PDFs into a single document in the right order, for free, without installing software — plus tips on quality, order and privacy.
- PDF Password Protection Explained — The two kinds of PDF passwords, what AES-256 encryption really protects, why "no printing" restrictions are weak, and how to protect and unlock PDFs safely.