100% In-Browser • Private & Secure

Merge PDF Files Online — Fast, Free & Private

Combine multiple PDF files into one single document in seconds directly in your browser.

Drop PDF files here to merge

or click to browse from your device

Files processed locally in browser. No upload to servers.

How to Use Merge PDF

Choose multiple PDF documents from your device or drag and drop them into the merge box.

Drag or click the arrows to arrange your files in the exact order you want them merged.

Click Merge PDF. The combined file is generated instantly in your browser ready for download.

Is my data safe when merging PDFs on PDFora?

Yes, 100%. PDFora processes all files locally in your web browser. Your PDFs are never uploaded to any remote server or cloud storage.

Is there a limit on the number of PDFs I can merge?

You can merge as many PDF files as your browser memory permits. For best performance, we recommend batches under 100 MB total.

Can I reorder files before merging?

Yes! You can easily drag and drop files or use the dedicated Move Up and Move Down buttons to set the sequence.