PDF Tools
PDF Merge
Combine multiple PDF files into a single document. Reorder files before merging. Everything runs in your browser — no uploads.
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Drop PDF files here or click to browse
Select multiple files
How to Use
- Select or drop the PDF files you want to merge.
- Use the ↑ ↓ arrows to reorder them.
- Click Merge & Download.
FAQ
Are my PDFs uploaded anywhere?
No. Merging uses the pdf-lib library which runs entirely in your browser. Your files never leave your device.
Is there a file size limit?
Limited only by your browser's available memory. Very large PDFs (100MB+) may be slow.
Are password-protected PDFs supported?
No — encrypted PDFs will fail to merge. Remove the password first.