Merge PDF Files Online Free
Combine multiple PDF files into a single document instantly
Drop PDFs to merge
Add multiple files to combine them
Your files never leave your device. 100% private and secure.
How It Works
Select PDF Files
Click "Select PDF files" or drag and drop multiple PDF documents into the upload area.
Arrange Documents
Drag the file thumbnails to reorder them exactly how you want them to appear in the final document.
Merge and Download
Click "Merge PDF" to combine them instantly, then download your single, merged PDF file.
Frequently Asked Questions
How many PDFs can I merge at once?▼
Can I reorder PDFs before merging?▼
Is the merged PDF quality affected?▼
Do I need to create an account?▼
About This Tool
Combine multiple PDF files into one document with our free PDF merger tool. Merge PDFs online by dragging and dropping files in your preferred order – no file limit. Perfect for combining PDF documents like invoices, contracts, reports, or scanned pages into a single file. Our PDF combiner preserves original quality, maintains bookmarks, and keeps all formatting intact. Arrange pages visually before merging with real-time preview. The join PDF process is 100% client-side – files never leave your browser, ensuring complete security. Merge password-protected PDFs, large files, and documents with different page sizes or orientations.
Why Use AeroPDF?
100% Private & Secure
Files are processed entirely in your browser. Nothing is uploaded to any server.
Lightning Fast
No waiting for uploads or downloads. Everything happens instantly on your device.
Works Everywhere
Use on any device with a modern browser. Windows, Mac, Linux, or mobile.