PDF Merger

How to Merge PDF Files

1. Upload PDFs: Click or drag and drop your PDF files into the upload area
2. Arrange Order: Files will be merged in the order they appear in the list
3. Merge: Click the "Merge PDFs" button to combine all files
4. Download: Your merged PDF will automatically download

Why Use Our PDF Merger?

• Client-Side Processing: All operations happen in your browser - no files are sent to any server
• Privacy First: Your documents remain completely private and secure
• No Registration: Use the tool instantly without creating an account
• Free Forever: No hidden costs, watermarks, or limitations
• Works Offline: Once loaded, the tool works without internet connection

Common Use Cases for PDF Merging

• Combine multiple invoices or receipts using our PDF merger tool
• Merge chapters of a document or report into one file
• Consolidate scan pages into a single PDF document
• Combine presentation slides from multiple sources
• Create a complete portfolio from separate PDF files
• Use together with our PDF Splitter to extract pages before merging

Technical Details & Privacy

This PDF merger uses pdf-lib, a powerful JavaScript library for PDF manipulation. All processing occurs directly in your web browser using modern web technologies, ensuring maximum privacy and security for your documents. Your PDFs never leave your device.

After merging, you can use our PDF Compressor to reduce file size, our PDF Page Organizer to reorder pages, or ourImages to PDF converter to add images to your merged document.