PDF Tool
Merge PDF
Combine multiple PDF files into one document
Drop PDF files here or browse
Up to 3 files · 10 MB per file · PDF only
How to Merge PDF
1
Upload
Select or drag and drop your PDF file(s) into the upload area above.
2
Process
Click the process button. Our server handles your file instantly and securely.
3
Download
Download your processed file. Files are available for 1 hour before auto-deletion.
Why Use PaperFlow Merge PDF
✓
Completely Free
No subscription, no hidden fees. Use the tool as many times as you need.
✓
No Registration Required
Start using the tool immediately without creating an account.
✓
Bank-Level Security
All files are encrypted in transit and deleted automatically after processing.
✓
High Quality Output
Our algorithms maintain original document quality and formatting.
Frequently Asked Questions
How does the Merge PDF tool work?
Upload your PDF file, configure any options, and click process. Our server handles the operation securely and returns your result instantly.
Is my file secure?
Yes. All uploaded files are processed on secure servers and automatically deleted within 1 hour. We never store or share your files.
What is the maximum file size?
Free and guest users can upload up to 20 MB; Pro and Business plans support up to 50 MB per file.
Is this tool free?
Yes. This tool is free to use with daily limits. Upgrade to Pro for higher limits and no watermark.
Do I need to install anything?
No. Everything runs online in your browser — no software, plugins, or signup required for basic use.