Merge PDF

Combine multiple PDF documents into a single file instantly. Your files never leave your device.

100% Secure. Local processing.

Drop PDFs here

or click to select files

Release to upload

Add at least two PDF files
to start merging

Privacy Note

Your PDF files are never uploaded. Merging happens entirely in your browser's memory.

How to combine PDF files

1

Upload Files

Drag and drop your PDF documents or click the selection box to add files from your computer.

2

Sort Order

Drag the file cards to arrange them in the exact order you want them to appear in the merged document.

3

Merge & Save

Click the "Merge & Download" button. The processing happens locally, and your new PDF will be saved instantly.

Designed for privacy and speed

Enterprise-Grade Security

Zero Uploads Client-Side
Private Data Stays Local
In-Memory Only No Storage

Workflow Efficiency

Unlimited Files No Limits
Visual Reordering Intuitive
Instant Download Blazing Fast

Expert Q&A

Is there a limit on the file size?
Technically, there is no hard limit. However, since all processing happens in your browser's RAM, merging very large files (e.g., hundreds of megabytes) will depend on your device's available memory.
Can I merge password-protected PDFs?
No, encrypted or password-protected files cannot be merged for security reasons. You should remove the password from your documents before attempting to merge them.
Will my links and bookmarks stay intact?
Most hyperlinks within pages are preserved. However, global bookmarks (outlines) from the individual documents may not be automatically merged into a single outline in the final output file.