Merge PDF Online
Combine multiple PDF files into a single document. Upload, reorder, and merge — all in your browser. No server uploads, no signup, completely free.
Drag & Drop PDF Files Here
or click to browse — Add 2 or more PDFs to merge
How to Merge PDF Files
Combine PDFs Securely in Your Browser
Our PDF merger uses the powerful pdf-lib library to combine PDF documents entirely in your browser. Unlike cloud-based tools like iLovePDF or Smallpdf, your files are never uploaded to any server — giving you complete privacy and security for confidential documents.
Step-by-Step Guide
- Step 1: Click the drop zone or drag multiple PDF files onto the page.
- Step 2: Reorder the files using the up/down arrow buttons to set the desired page order.
- Step 3: Click "Merge & Download PDF" to combine all files into a single document.
- Step 4: Your merged PDF downloads automatically — ready to share or print.
Frequently Asked Questions
Is this PDF merger really free?
Yes, completely free with no limits on file count or size. No watermarks are added to your merged document.
Are my PDF files uploaded to a server?
No. Everything is processed in your browser. Your documents never leave your computer, making this the most private PDF merger available.
Can I reorder PDF files before merging?
Yes! Use the arrow buttons next to each file to move it up or down in the order. The final PDF will follow your custom arrangement.
Is there a limit on how many PDFs I can merge?
There's no hard limit. Performance depends on your device's memory. Most modern devices can handle dozens of PDFs smoothly.
Will the quality of my PDFs be affected?
No. We copy pages directly from source documents without re-encoding, so quality remains identical to the originals.