Processing
SVG Manipulation
Vector Export
PDF Productivity
Creative Studios
Image Optimization
Video Optimization
Video Converters
Marketing & Text
QR & Barcode
Data Collection
High-fidelity PDF combination. Merge multiple PDFs into one document with drag-and-drop reordering. All processing happens locally.
Add PDF files to merge
All merging occurs locally using pdf-lib. Your PDFs are never uploaded.
Select 2 or more PDF files to merge
PDF Merger allows you to combine any number of PDF files into a single document. Simply upload your files, arrange them in the desired order, and merge. The output is a single, consolidated PDF preserving the original quality.
Use the up and down arrows to reorder your PDF files before merging. This ensures your combined document has pages in exactly the sequence you need. Remove individual files if you change your mind.
Your PDF files are processed entirely within your browser using the pdf-lib library. No data is ever sent to a server. This makes Zrubix ideal for merging confidential documents, contracts, or any sensitive files.
Merging PDFs is a common task for professionals, students, and anyone working with documents. Whether you're combining chapters of a report, consolidating invoices, or assembling a portfolio, Zrubix PDF Merger provides a fast, secure, and free solution.
Why use an online PDF merger? Desktop software can be expensive and slow. Online services often require uploads to their servers, raising privacy concerns. Our tool processes everything locally in your browser, combining the convenience of a web app with the security of offline software.
Our merger uses the powerful pdf-lib JavaScript library, which can parse, modify, and create PDF documents entirely in the browser. Each uploaded PDF is read into memory, and its pages are copied into a new combined document. This preserves all formatting, fonts, and images.
The process is efficient and works with PDFs of any size. Progress is tracked in real-time, so you always know how the merge is proceeding. The final output is a standard PDF file compatible with all readers.
PDF Merger is part of the Zrubix document toolkit. After merging, you might want to compress the result with our PDF Compressor, or convert it to images with our PDF to Image converter. For splitting, look out for our upcoming PDF Splitter tool. Our suite provides a complete PDF workflow.
Experience the precision and speed that only a local-first web application can provide. Trust Zrubix for all your PDF merging needs.
Recommended Workflow Partners