Merge multiple PDF files into one document instantly. No signup, no watermark, processed in your browser — completely private.
Select 2 or more PDF files. They will be merged in the order you select them.
Files are processed locally in your browser. Nothing is uploaded to our servers.
Click "Choose PDF Files" and select two or more PDF files from your device. The files will be listed in order — you can remove any file before merging. Click "Merge PDFs" and your combined document will be ready to download instantly. No account needed, no email required.
Yes — this PDF merger runs entirely in your browser using the PDF-lib JavaScript library. Your files are never uploaded to any server. The merging process happens locally on your device, so your documents remain completely private.
Each PDF can be up to 100MB. For very large files, the browser may take a moment to process. If you encounter issues, try merging fewer files at once.
Files are merged in the order you select them. To change the order, remove files from the list and re-add them in your preferred sequence.
This tool works in all modern browsers — Chrome, Firefox, Safari, and Edge. JavaScript must be enabled.