Deprecation notice

PageSigner used an old TLSNotary protocol which is unaudited, experimental, and deprecated. A vulnerability was discovered in PageSigner on 19th Jul 2023 allowing the prover to create arbitrary proofs, thus the proofs created with PageSigner must not be trusted.

This repository will not receive any updates and is archived for historical purposes.

PageSigner - a cryptographically secure webpage screenshot tool.

PageSigner is a Chromium extension implementing a client for the TLSNotary protocol.

You can install PageSigner from Chrome webstore:

https://chrome.google.com/webstore/detail/pagesigner/abblaaeblmamacadkdmnejjikbdkemcj

Or you can install it by cloning this repo with:

• git clone --recurse-submodules https://github.com/tlsnotary/pagesigner
• go to chrome://extensions and Enable "Developer mode"
• Click "Load unpacked"
• Navigate inside pagesigner's top folder and click Open.