PDF Merger
Combine multiple PDFs into a single file, in the order you choose. Everything happens in your browser.
Combine two or more PDF files into a single document, in exactly the order you arrange them. Common for merging separately-scanned chapters, combining an invoice with its supporting receipts, or assembling a multi-part report into one file to send. Pages, images, and text are preserved exactly from each source file, and the merge happens locally with pdf-lib so nothing uploads to a server.
Loading tool
How it works
- 01
Add two or more PDF files (drag & drop or click to browse).
- 02
Reorder them with the up/down arrows until the order is right.
- 03
Click Merge, then download the combined PDF.
Details
- Category
- Documents & PDF
- Formats
- Runs
- In your browser
- Files uploaded
- No
- Cost per run
- Free
- Sign-in
- Not required
- Works offline
- Yes, once loaded
Last updated 2026-08-03
Common questions
Is there a limit on how many PDFs I can merge?
No hard limit - merge as many files as your browser's memory allows. Everything runs client-side, so there's no upload size cap from a server.
Do my files get uploaded anywhere?
No. Merging happens entirely in your browser using WebAssembly. Your PDFs never leave your device.
Will merging preserve bookmarks and links?
Page content, images and text are preserved exactly. Some PDF-internal bookmarks/links may not carry over, since they're tied to the original document structure.
Can I reorder pages after merging?
Use the arrows to set file order before merging. For page-level reordering within a single PDF, use the PDF Splitter to break it apart first.