PDF Merge
Combine several PDFs into one file, add as many as you like, drag them into the right order, and download the merged document. Merged in your browser; nothing is ever uploaded.
Add two or more PDFs, drag the handles to set the order, then merge. The combined file downloads straight to your device.
How it works
Each PDF is read into memory and its pages are copied, in the order you set, into a single new document using the pdf-lib engine. Page content, sizes and orientation are preserved exactly.
Your files are merged entirely in your browser, nothing is ever uploaded to a server.
What this does
A PDF merge tool combines several PDFs into one file, in the order you set.
How to use it
- Add as many PDFs as you like.
- Drag them into the right order.
- Merge into one document.
- Download the result.
How it works
Pages are copied exactly and assembled in your browser, so nothing is uploaded. Content, dimensions, and orientation are preserved — nothing is re-rendered.
Understanding your result
The combined file copies every page exactly, but document-level extras, bookmarks, internal links, and interactive form fields, often do not survive the merge, so open the result and check anything beyond the raw pages. The merged size is roughly the sum of the inputs, so a large result is normal; run it through a compressor afterwards if you need to email it.
Example
Three chapter PDFs become a single bound document.
Sources & methodology
Last updated .
Frequently asked questions
How many PDFs can I merge?
As many as you like. Add files, set their order with the up and down controls, then merge them into a single document.
Will the pages keep their quality and size?
Yes. Pages are copied exactly, preserving their content, dimensions and orientation, nothing is re-rendered or recompressed.
Can I change the order before merging?
Yes. Each file has up, down and remove controls so you can arrange them precisely before downloading.
Are my files uploaded?
No. Everything is calculated locally in your browser.
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