A desktop application for securely signing, encrypting, and managing the expiration of PDF documents. Built with Electron + React + Node.js.

• Sign PDF files with a .p12 certificate — fully offline
• Batch Sign — sign multiple documents at once
• Batch Encrypt & Decrypt PDF documents
• Works entirely offline — ensuring maximum privacy
• Available for Windows, macOS, and Linux

1. Clone the repository:

   git clone https://github.com/flamecorecloud/signature-one.git
   cd signature-one

2. Install dependencies:

   npm install

3. Run the app in development mode:

   npm start

4. Generate Key.p12

   openssl genrsa -out private.key 2048 
   
   openssl req -new -x509 -key private.key -out cert.crt -days 365
   
   openssl pkcs12 -export \
   -inkey private.key \
   -in cert.crt \
   -out key.p12

   Or use Certificate Generator (https://www.flamecore.cloud/self-signed-certificate)

5. Self Signed Certificate

   export CSC_LINK=.dev/fmc/key.p12
   export CSC_KEY_PASSWORD=password 

6. Build the application:

   npm run package

Developed by Andika Chamberlin Website: https://flamecore.cloud Tutorial: YouTube