Free PDF Tool
Merge PDFs Online, Free
Combine multiple PDF files into one. No signup, no upload to servers, no size limits beyond your browser. Your files never leave your device.
Drop PDFs here or click to browse
Add as many PDF files as you need. Arrange them in order below.
Upload PDFs
Drop your PDF files above or click to browse. Add as many as you need.
Set the order
Drag to reorder or use the arrow buttons. The files merge in the order you set.
Download
Click Merge and your combined PDF downloads instantly. Nothing is uploaded to any server.
How to merge PDF files online
Why combine PDF files?
Merging PDFs is one of the most common document tasks. You might need to combine a signed cover letter with supporting attachments, merge multiple scanned pages into one document, or combine several reports into a single file before sending it as a fax or email attachment.
Is my data private?
Yes. FaxDrop's PDF merger runs entirely in your browser using a technology called WebAssembly. Your PDF files are never uploaded to any server, never stored, and never transmitted over the internet. They stay on your device from start to finish.
What types of PDFs can I merge?
Standard PDF files work perfectly. Password-protected or encrypted PDFs are not supported. If your PDF is locked, you will need to remove the password before merging. Regular PDFs from Word, Google Docs, or scanners all work without any issues.
Need to fax the merged document?
FaxDrop can fax your merged PDF in under 90 seconds. Upload the file you just downloaded, enter the recipient's fax number, and hit send. Two free faxes per month, no account required. HIPAA-compliant for healthcare and legal use.
Need to fax your PDF?
FaxDrop delivers faxes in under 90 seconds. Free to start. No fax machine needed.
Send a Fax FreeSecurity & Compliance
HIPAA Compliant
Signed BAA on file · No document retention
PCI DSS Level 1
Payments secured by Stripe · No card data touches our servers
256-bit SSL
End-to-end TLS 1.2+ encryption in transit
Zero Retention
Files deleted immediately after transmission completes