Is the PDF merger free?

Yes. You can merge up to 2 PDFs for free in your browser. The Sovereign Suite app offers unlimited PDF merging with no page limits.

Are my PDFs uploaded to a server?

No. All merging happens locally using the pdf-lib library in your browser. Your documents never leave your device.

Is there a file size limit?

The web version works best with PDFs under 10MB each. The Sovereign Suite app handles large files with no size restrictions.

Will the merged PDF preserve formatting?

Yes. pdf-lib preserves all text, images, fonts, and page layouts from the original PDFs.

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PDF Merger

Free online PDF merger. Combine multiple PDFs into one file instantly. No upload required — all processing happens locally in your browser. Your documents stay private.