About this tool
Merge PDF combines several PDF files into a single document, right in your browser. Add your files, arrange them in the order you want, and download one merged PDF — no uploads to any server, so your documents stay completely private. It is perfect for combining invoices, reports, scanned pages and contracts.
How to use
- 1Add two or more PDF files.
- 2Reorder them if needed.
- 3Click Merge and download the combined PDF.
Benefits
- Runs 100% in your browser — private.
- No file size or count limits.
- Keeps original quality.
Review a merged PDF before sharing
Practical example
Combine a cover page, report and appendix by arranging them in that order before export. Open the result and check the first, last and transition pages.
Interpreting the result
Merging preserves page content but does not automatically create bookmarks, normalize page sizes or repair inaccessible scans. Mixed portrait and landscape pages can be valid.
Limits and common mistakes
Password-protected, damaged or unusually large files may fail in a browser. Keep source documents and confirm that confidential material is intended for every recipient.
Detailed guides for this tool
Learn the underlying concepts, worked examples and common mistakes before relying on the result.
Frequently asked questions
Are my PDFs uploaded?+
No. Merging happens locally in your browser using PDF-lib; nothing is sent to a server.
Can I change the page order?+
Yes. Arrange the files before merging to control the final page order.