🔒 100% Client-Side • Zero Server Uploads

100% Private PDF Merger — Combine Documents Locally in Browser

Combine multiple PDF contracts, court exhibits, and bank statements into a single document on your device. Files never upload to any server.

Security Guarantee: All PDF processing executes via WebAssembly & JavaScript inside your browser. No files, metadata, or document contents are ever transmitted over the network.

How to Use PDF Merger

Step 1: Select PDF Documents

Drag and drop two or more PDF files into the tool window.

Step 2: Reorder Pages & Files

Use the up/down controls or drag handles to organize documents into your desired order.

Step 3: Merge & Save

Click "Merge Documents" to instantly build and download your combined PDF.

Frequently Asked Questions

Are my PDF files uploaded to your server when merging?

No. Unlike traditional cloud PDF websites (SmallPDF, iLovePDF), LegalCalculator.online uses local browser memory (pdf-lib) to merge your documents. Your files never leave your computer or phone.

Is there a limit on how many PDFs or pages I can combine?

There are no artificial software limits. You can combine as many documents and pages as your local device RAM can handle.

Is it safe to merge confidential legal and tax documents here?

Yes, it is the safest method available on the web. Because there is zero network transmission, your documents cannot be intercepted, logged, or mined for AI training.