Merge PDF Files Online - Free & Private
Combine multiple PDF files into a single document. Drag to reorder before merging. Your files never leave your device.
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How to Merge PDF
Upload Your File
Click the upload area or drag and drop your PDF into the box above.
Configure Options
Adjust any settings if needed, then click the "Merge PDF" button to process.
Download Result
Your processed file is ready instantly. Click download — done!
Frequently Asked Questions
Yes, 100% free with no limits. No sign-up, no daily caps, no file size restrictions. All processing happens in your browser.
Absolutely. Your files never leave your device. All merging happens locally in your browser using JavaScript. We never upload, store, or even see your files.
No limit. You can merge as many PDF files as your browser's memory allows. For very large files (500MB+), we recommend merging in smaller batches.
Yes! Simply drag and drop files in the list to arrange them in your preferred order before merging.
Yes. Our tool works on all modern browsers including mobile devices (iPhone, Android). Processing happens on your device.
No. Everything runs in your web browser. No downloads, no plugins, no installation required.