100% In-Browser & Private

Merge PDF Files

Combine multiple PDF documents into a single file in seconds. Reorder your files and process everything securely in your browser.

Drop your PDF files here to merge

Select multiple PDF documents. Reorder them as needed and combine them into a single PDF instantly in your browser.

Choose PDF Files

Supports .PDF format. 100% private in-browser merging.

100% Private In-Browser Conversion

Your files never touch any remote server or cloud storage.

Local RAM Processing

Conversion is calculated directly on your device CPU using standard HTML5 Canvas API.

Zero Cloud Uploads

No external APIs, databases, or third-party servers see your images at any time.

Works Completely Offline

Once loaded in your browser, you can disconnect Wi-Fi and convert files without internet access.

Why Merge PDF Documents?

Consolidating reports, receipts, presentations, or scanned contracts into a single organized PDF document simplifies file sharing and archiving. Eliminates the hassle of sending multiple email attachments.

Complete Confidentiality & Security

Traditional online PDF tools upload your sensitive legal, medical, or business files to cloud servers. File Fix Hub merges your files 100% locally on your machine—your data never touches the internet.

Frequently Asked Questions

Everything you need to know about merging PDF files locally.

How does in-browser PDF merging work?

Our tool combines your PDF documents directly inside your browser memory using JavaScript and PDF stream object copying. Your files are never uploaded to external servers, protecting confidential documents.

Can I reorder PDF files before merging?

Yes! You can drag and drop files in the queue or use the Up (↑) and Down (↓) arrow buttons next to each file to arrange them in the exact order you want them merged.

Can I merge password-protected or encrypted PDF files?

Yes, our engine automatically processes standard encrypted or permission-restricted PDFs without requiring external server unlocks, provided the file can be opened for viewing.

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

Because processing runs directly on your local device hardware, there are no artificial file upload limits. You can combine as many PDF files as your device memory can handle.