How to use Merge PDF
- Choose or drop two or more PDF files.
- Use Up and Down to arrange them. The top file comes first.
- Press Merge PDFs and download merged.pdf.
Questions
Is there a limit on how many PDFs I can merge?
No fixed limit. Very large jobs (hundreds of MB) depend on your device's memory; a laptop handles far more than a phone.
Will links, bookmarks and form fields survive?
Page content, text and images are kept exactly. Document-level extras such as bookmarks (the outline) and some interactive form fields may not carry over.
Can I merge password-protected PDFs?
Not directly. Remove the password first, then merge.
Is my PDFs uploaded to a server?
No. The tool runs in your browser and works on your PDFs directly on your device. Nothing is sent to us or anyone else, which is why it also keeps working if your connection drops after the page loads.
Is merging PDFs free?
Yes. There's no sign-up, no watermark and no daily limit. The only limit is your device's memory, which matters only for very large files.
Last updated 13 November 2026.