PDF Merger
Merge multiple PDF files into one document in your browser. Reorder pages, remove pages and download the combined PDF - all locally.
How to use
- 1
Upload two or more PDF files.
- 2
Drag pages to reorder, or remove any you do not want.
- 3
Click "Merge" and download the combined PDF.
How it works
Each input PDF is opened in memory with the pdf-lib library, its pages are copied, and a single output PDF is written. The joining is real - text, images and vector graphics are preserved.
Frequently asked questions
Are the original PDFs modified?
No. A new combined file is created; your originals stay untouched on disk and in memory.
Does merging keep text selectable?
Yes. Pages are copied structurally, so text and vector content remain intact and selectable.
What about passwords?
Password-protected PDFs cannot be merged with this tool for security reasons and are rejected with a clear message.
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