# Introduction & Scope ## 📘 Introduction In this guide we provide You with comprehensive understanding of architecture and functionality of our document sealing solution, which will enable effective and safe use of the product in your daily work. But first... ### What is digital document sealing? 😒 Document sealing is the digital equivalent of stamping a document with your organization's official seal. It ensures two things: * **Authenticity**: The document truly comes from Your organization. * **Integrity**: The content has not been changed or tampered with since it was sealed. A sealed document carries a unique digital signature that acts like a tamper-evident seal—if anything in the document is altered, the seal becomes invalid. ### Why use digital sealing? 🤔 Organizations use document sealing to: * Prove the source of official documents (e.g., invoices, certificates, reports) * Prevent unauthorized changes to files * Ensure legal compliance and auditability * Build trust with customers, partners, and regulators Whether you’re sending invoices, issuing digital certificates, or sharing sensitive reports, sealing helps ensure that your documents remain trustworthy from sender to recipient. This is where we introduce to You... ### *SIGNIUS Sealing Server* and *SIGNIUS Sealing Client* 😍 These two applications will help You with document sealing (as well as **Qualified Timestamping**, **Validation** and **Encryption/Decryption**) within Your entire organization. We provide multiple ways of integration, easy deployment options on almost any operating system, whether it is a spread environment or not, whether the environment has connection to the internet or not and more... ## 🎯 Scope In this guide You’ll find in detailed information about: * **Architecture** (deployment options with examples of real-life environment setup), * **Performance** (factors affecting application performance, tested speeds achievable in QUAL and PROD environments), * **Requirements** (Operating system, resources, software), * **Installation** (step by step instructions with visual aids for most common environments), * **Configuration** (step by step instructions with visual aids for most common environments), * **Features** (built-in optional functions, additional plug-ins), * **Integration** (possible options of integrating with our solution), * **Licensing** of our sealing solution. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.signius.eu/manuals/signius-sealing-server-and-client/introduction-and-scope.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.