Merge PDF
Merge multiple PDF files into one document. Reorder files, preview the queue, and download — all locally.
Examples
See what this tool can do.
Combine chapters into one file
Add each chapter PDF, drag them into the right order, and merge them into a single document ready to share or print.
Attach a cover page
Put a one-page cover PDF first and your report second, then merge — no reformatting needed.
Bundle scanned receipts
Drop several scanned receipt PDFs in and merge them into one file for an expense claim.
Tips & tricks
Get the most out of it.
- 1Drag files in the queue to set the exact page order before merging.
- 2There is no file-count limit imposed by a server — you are only bound by your device's memory.
- 3Merging keeps each source page as-is; it does not re-compress or downgrade quality.
About Merge PDF
What this tool does
Merge PDF combines two or more PDF files into a single document, preserving the original pages exactly. It is the fastest way to turn a pile of separate PDFs into one file you can email, print or archive.
How to use it
- Add the PDFs you want to combine (drag-and-drop or browse).
- Drag files in the queue to set the page order.
- Click Merge and download the combined PDF.
How it works
The tool uses the pdf-lib engine to copy every page from each source file into one new document. Pages are transferred without re-encoding, so text remains selectable and images are untouched.
Important considerations
- Form fields with the same name across files can collide; flatten forms first if needed.
- Digital signatures are invalidated by merging, as they are for any PDF editor.
Privacy
Your PDF is processed entirely in your browser. The file is never uploaded to a server, which makes this safe for confidential contracts, statements and personal documents.
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Frequently asked questions
No fixed limit. Because everything runs on your device, very large batches are only constrained by your available memory.