Merge PDFs
Processed locally. Files never leave your device.
Drop PDF files here
Drag and drop your files, or click anywhere in this area to browse
How it works
1
Add your files
Drop or select the PDF files you want to merge. Drag to reorder them.
2
Process locally
Files are combined in your browser using client-side technology. Nothing leaves your device.
3
Download result
Your merged PDF is ready to download instantly. No waiting for uploads or server processing.
Privacy by design
- All processing happens locally in your browser
- Files are never uploaded to any server
- No server interaction after page load
- Works offline once opened
Other tools
Merge PDF Files Without Uploading
Plain lets you merge PDF files offline without uploading them to any server. All files are processed locally in your browser using modern client-side technology. This makes Plain ideal for confidential documents and professional use.