When you search for "merge PDF online," you're bombarded with hundreds of free tools. Most of these services work in a traditional way: you upload your file to their server, they process it, and then you download the result. While convenient, this "cloud-based" approach carries inherent risks.

The Hidden Risk of Uploads

Uploading a file means it leaves your device. Once a file lands on a remote server, you lose control over it. While many reputable services promise to delete files after one hour, you are essentially trusting a stranger with your data.

• Data Interception: Files can be intercepted during the upload process if the connection isn't perfectly secure.
• Server Breaches: Even well-intentioned companies can be hacked. If your file is sitting on a server during a breach, it could be exposed.
• Retention Policies: Terms of service can be vague. Some services might retain the right to analyze your file for "improvement purposes."

The Client-Side Revolution

Andromeda PDF takes a different approach. We use modern web technologies like WebAssembly to run powerful PDF processing code directly in your browser.

When you use our Merge tool, your PDF files are never sent to our servers. The entire operation happens in your computer's memory. It's effectively the same as using a desktop application like Adobe Acrobat, but without the heavy installation.

Benefits of Local Processing:

Conclusion

For sensitive documents—contracts, medical records, financial statements—local processing isn't just a feature; it's a necessity. By choosing tools that respect your meaningful privacy, you reduce your digital footprint and keep your data where it belongs: with you.