PGP Sign File

Digitally sign files using your PGP/GPG private key to prove authenticity and detect tampering.

How It Works

1

Import Your Private Key

Upload or paste your PGP private key and enter the passphrase to unlock it for signing.

2

Select File to Sign

Choose the file you want to digitally sign. The tool supports documents, images, and other file types.

3

Generate Signature File

The tool creates a digital signature file using your private key that can be shared alongside the original file.

Frequently Asked Questions

What is file signing and why is it important?

File signing creates a digital signature that proves the file came from you and hasn't been modified. It's crucial for software distribution, legal documents, and any files where authenticity matters.

What's the difference between detached and inline signatures?

Detached signatures create a separate .sig file that accompanies the original file. Inline signatures embed the signature within the file content. Detached signatures preserve the original file format.

Can I sign any type of file?

Yes, you can sign any file type including documents, executables, images, and archives. The signing process works with the file's binary data regardless of format.

How do others verify my file signatures?

Others need your public key and the signature file (or signed file) to verify authenticity using PGP software or our verification tool.

Is file signing secure in the browser?

Yes, all signing happens locally on your device. Your private key and files are never transmitted to external servers.

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