Are my confidential PDF documents uploaded to a server?

No, all file processing happens directly within your device browser memory via WebAssembly/JS. No files leave your device.

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PDF Merger

Combine multiple PDF documents into a single file 100% locally in your browser.

How to Use PDF Merger

1Upload two or more PDF files from your computer.
2Reorder files using the up/down arrows if desired.
3Click Merge PDFs to combine all pages.
4Download the merged PDF file instantly.

Key Features & Benefits

100% private in-browser merging using pdf-lib
Reorder documents before merging
Preserves original page orientation and vector quality
Instant client-side download without watermarks

About PDF Merger

Fast, secure client-side PDF merger powered by pdf-lib. Select multiple PDF files, reorder pages or documents, and merge them into one organized document with zero server uploads.

Unlike traditional web tools that send your personal data, uploaded photos, or sensitive text to remote cloud servers, our PDF Merger operates strictly inside your client browser sandbox. This guarantees high processing speeds without network throttling, and ensures your data privacy is completely preserved.