Combine multiple PDF documents into a single document locally.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. Zero egress.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
Drag and drop or select two or more PDF files from your device.
Arrange documents in your desired sequence using drag-and-drop handles.
Click 'Merge PDFs' to assemble and download your single combined document instantly.
No. PDF assembly runs 100% locally in your browser memory via pdf-lib with zero data upload.
You can merge dozens of PDF files quickly depending on your local device memory.
Zero-egress companion tools in the PDF Utilities suite
Convert PNG, JPEG, and WebP images to multi-page PDF documents.
Render and extract PDF document pages into high-resolution PNG/JPEG images.
Stamp custom text watermarks and dynamic page numbers onto PDFs.
Rearrange PDF page sequences (e.g. 3, 1, 2, 5, 4) in-browser with zero upload.
