Merge PDF Files
Combine Multiple PDFs Into One
Free online PDF merger. Drag and drop your PDF files, arrange them in any order, and combine into a single document. 100% client-side processing - your files never leave your browser.
PDF Merge Tool
Drop PDF files here
or click to browse
Drag to reorder files
Merge Options
.pdf extension will be added automatically
Add at least 2 PDF files to merge
Processing...
Privacy First: All processing happens in your browser. Your files are never uploaded to any server.
Common Use Cases
Combine Invoices
Merge multiple invoice PDFs into a single document for accounting, tax filing, or record keeping.
Compile Reports
Combine chapter sections, appendices, and cover pages into a complete report or book.
Merge Contracts
Combine contract documents, exhibits, and signature pages into one complete agreement.
Study Materials
Combine lecture notes, slides, and handouts into a single study guide for easier reviewing.
Portfolio Assembly
Combine work samples, certificates, and resume into a professional portfolio document.
Print Jobs
Combine multiple documents into a single PDF for easier printing or sharing.
Features & Capabilities
Unlimited Files
Merge as many PDFs as your browser memory allows.
Drag & Drop
Easy file upload and reordering with drag and drop.
Preserves Quality
Original PDF quality maintained - no compression or degradation.
Instant Processing
Fast client-side processing with no upload wait times.
Custom Filename
Specify your own output filename for the merged PDF.
100% Private
Files stay on your device - nothing uploaded to servers.
Frequently Asked Questions
Why We Built This PDF Merger
Merging PDFs shouldn't require expensive software subscriptions or uploading sensitive documents to unknown servers. Whether you're combining invoices for tax season, assembling a report from multiple sources, or creating a portfolio from scattered documents, you need a tool that's fast, free, and respects your privacy.
Most online PDF mergers upload your files to their servers for processing, which raises serious privacy concerns for confidential documents. Our PDF merger processes everything directly in your browser using JavaScript. Your files never leave your computer, making it safe for sensitive business documents, contracts, financial records, and personal files.
We built this tool with simplicity in mind. Drag and drop your files, arrange them in order, and click merge. No account registration, no file size limits beyond what your browser can handle, and no watermarks on your output. Just a clean, fast PDF merger that works exactly when you need it.
The tool preserves complete PDF quality - all images, fonts, vectors, and formatting come through exactly as they appeared in the original files. There's no compression or re-encoding that could degrade your documents. What goes in is exactly what comes out, just combined.
This PDF Merger is part of RJL.io's growing collection of free developer and productivity tools. Check out our other utilities including QR Code Generator, Base64 Encoder, and JSON Tools.