Why Use a Client-Side PDF Merger & Splitter?
Most online PDF services require you to upload your files to remote cloud servers. This presents severe privacy and compliance risks when handling sensitive documents like bank statements, contracts, tax returns, medical records, or identity documents.
Our tool runs 100% locally in your web browser using client-side JavaScript. When you add files, your computer's own CPU reads the PDF binary streams, reassembles the page trees, and outputs the resulting document directly into your browser's download cache. Your files never touch a remote server, ensuring zero data leakage.
🔒 Confidential & GDPR-Ready
Zero server uploads means complete compliance with privacy regulations. Safe for sensitive enterprise and personal documents.
⚡ Ultra-Fast Execution
No waiting for upload queues or slow server downloads. PDF operations complete in milliseconds directly on your hardware.
📶 Works Offline
Once loaded, you can disconnect from Wi-Fi or airplane mode and continue merging and splitting PDF files seamlessly.
Frequently Asked Questions
How do I combine multiple PDF files into a single document?
Select the Merge PDFs tab, drag two or more PDF files into the upload area, use the arrow buttons to arrange them in your preferred reading order, and click Merge PDFs & Download.
How does page range selection work in Split mode?
Enter page numbers using standard printer syntax. For example, 1-3, 5 extracts pages 1, 2, 3, and 5 from the original document and saves them into a new PDF.
Are bookmarked outlines and links preserved?
The tool copies all visual page elements, text vectors, fonts, images, and page annotations into the newly merged or split document.