PDF Merge
Drop PDF files here
or click "Add PDF Files" to browse
Files are processed locally - nothing is uploaded
Free Online PDF Merge Tool
Combine multiple PDF files into a single document quickly and securely. All processing happens in your browser.
All processing is done locally in your browser. Your data never leaves your device.
How to Use PDF Merge
- Click "Add PDF Files" or drag and drop PDFs onto the page
- Arrange files in the desired order using the up/down buttons or drag and drop
- Click "Merge PDFs" to combine them into a single file
- Download the merged PDF instantly
Key Features
- 100% browser-side processing — files never leave your device
- Drag-and-drop reordering for full control over page order
- No file size limits — merge as many PDFs as needed
- No installation or signup required
- Works offline once loaded
Frequently Asked Questions
Is my PDF data uploaded anywhere?
No. All processing happens locally in your browser using pdf-lib. Your files never leave your device.
Is there a limit on file size or number of files?
There are no hard limits. Performance depends on your browser and device memory. Most modern devices can handle hundreds of PDFs.
Can I reorder pages within a PDF?
This tool merges entire PDF files in the order you specify. For page-level editing, check back for future enhancements.
Are password-protected PDFs supported?
Password-protected or encrypted PDFs are not supported. Please decrypt them first before merging.
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