PDF Merger
Combine multiple PDF files into a single document. Drag to reorder before merging. 100% browser-based — files never leave your device.
About the PDF Merger
Combine multiple PDF files into a single document. Drag to reorder before merging. 100% browser-based — files never leave your device.
PDF Merger combines multiple PDF files into a single document directly in your browser. Drag and drop your PDFs, reorder them as needed, and download the merged file — no upload to any server, no file size limits beyond your device's memory.
- Type
- Tool
- Method
- pure client-side PDF manipulation using pdf-lib
- Runs in
- Your browser — no account, no install
- Price
- Free
- Privacy
- Inputs stay on your device unless the tool says otherwise
Frequently asked questions
You can upload and merge as many PDFs as your browser can handle. Most users merge 2-20 files without issues. Very large files may take longer to process.
Yes. After uploading multiple PDFs, drag and drop them to change the order. The merged output follows the order you set.
No. All merging happens entirely in your browser using pdf-lib. Your documents never leave your device, making it safe for sensitive files.
Basic page content, text, and images are preserved. Some advanced features like form fields and bookmarks may not carry over depending on the source PDF.
Individual PDFs can be up to 20MB each. The total combined size depends on your browser memory, but most merges under 100MB work fine.
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