Merge PDF Files

Combine multiple PDF files into a single document. Upload, arrange, and merge. All processing is local.

Runs in your browser · No uploads

Merge PDF Files

Combine multiple PDF documents into a single file instantly

100%
Client-Side
0
Files Sent
∞
Uses
No
Sign-up

Drag & Drop

Easy file upload

Reorder Pages

Customize page order

Instant Download

Get merged PDF

No Limits

Merge any number

How It Works

1 Upload your PDF files
2 Arrange them in order
3 Click Merge
4 Download result
🔒

Secure

Files never leave your device

⚡

Fast

Merge PDFs in seconds

💯

Free

No limits, no watermarks

Common Uses

Combine multiple PDF documents into one
Merge scanned pages into a single document
Combine different chapters of a book
Merge invoice pages before sending
Is my data secure?

Yes! All processing happens in your browser. Your files never leave your device.

Is there a file size limit?

No limits! Merge as many PDFs as you need.

📄

Drop a PDF or click to browse

Upload a PDF file to process

Related Tools
Split PDF File
pdf
Extract specific pages from a PDF file. Free, no signup, works in your browser.
Compress PDF
pdf
Compress PDF files to reduce file size. Works entirely in your browser, free.
PDF to Image Converter
pdf
Convert PDF pages to images. Export as PNG or JPEG. Works entirely in your browser.

Frequently Asked Questions

Is there a limit on file size or number of files?

No. You can merge as many PDFs as you want. Since all processing happens locally, there are no file size restrictions.

Are my PDFs uploaded to a server?

No. All processing happens in your browser using the pdf-lib library. Your documents never leave your device.

Can I rearrange the order of pages?

Currently, files are merged in the order you upload them. For more control, consider the page reorder tool.