Showing 34 open source projects for "digital signing"

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  • 1
    DocuSeal

    DocuSeal

    Open source DocuSign alternative

    Open source document filling and signing. DocuSeal is an open-source platform that provides secure and efficient digital document signing and processing. Create PDF forms to have them filled and signed online on any device with an easy-to-use, mobile-optimized web tool. Use embeddable code snippets to seamlessly implement the document signing workflows directly on your website or app.
    Downloads: 10 This Week
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  • 2
    Digital Signer (a PDF Signing software)

    Digital Signer (a PDF Signing software)

    Digital Signature & eSigning software. Bulk PDF signing. Sign all Page

    Digital Signer is a powerful and user-friendly software designed to secure and sign your digital documents with ease. Ideal for Tender filling, individuals, businesses, and professionals, this software ensures that your sensitive documents are protected from unauthorized editing and tampering, maintaining their integrity and authenticity. Key Features Sign PDFs with Hardware Devices: Ensuring the highest level of security. Digital Signature Certificates (DSC): Apply digital...
    Downloads: 47 This Week
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  • 3
    OpenSign

    OpenSign

    🔥 The free & Open Source DocuSign alternative

    The premier open source document signing solution (DocuSign alternative). Welcome to OpenSign, the premier open source docusign alternative - document e-signing solution designed to provide a secure, reliable and free alternative to commercial esign platforms like DocuSign, PandaDoc, SignNow, Adobe Sign, Smartwaiver, SignRequest, HelloSign & Zoho sign. Our mission is to democratize the document signing process, making it accessible and straightforward for everyone.
    Downloads: 13 This Week
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  • 4
    LibreSign

    LibreSign

    Nextcloud app to sign PDF documents

    Simplify your digital signatures and document management safely and efficiently. Beyond offering agility and security in digital signatures and document management, LibreSign features functionalities that adapt to the specific needs of your organization. Keep your documents secure with end-to-end encryption and multi-factor authentication, ensuring protection throughout the electronic document signing process.
    Downloads: 1 This Week
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  • 5
    Vanilla.PDF

    Vanilla.PDF

    Cross-platform SDK for creating and modifying PDF documents

    Vanilla.PDF is a modern, high-performance, open-source C++17 SDK designed for creating, editing, signing, and analyzing PDF documents across multiple platforms. It requires no external runtime dependencies, making it lightweight and ideal for embedding into desktop applications, servers, or automation pipelines. The SDK offers full cross-platform support including Windows, Linux, macOS, and Android, with builds available for major compilers and architectures.
    Downloads: 1 This Week
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  • 6
    ObjectivePGP

    ObjectivePGP

    ObjectivePGP is an open-source library for iOS and macOS

    ObjectivePGP is an open-source library for OpenPGP encryption, decryption, signing, and verification in Objective-C and Swift. It enables developers to add PGP-based security to iOS and macOS apps.
    Downloads: 1 This Week
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  • 7
    GopenPGP V3

    GopenPGP V3

    A high-level OpenPGP library

    GopenPGP V3 is a high-level OpenPGP cryptographic library developed by ProtonMail that provides a user-friendly API for common encryption and signing operations in Go, abstracting the complexity of the underlying OpenPGP standards and golang crypto primitives. This library lets developers perform key generation, message encryption and decryption, digital signing, and signature verification with straightforward functions that hide much of the boilerplate and nuance typically required when working directly with OpenPGP implementations. ...
    Downloads: 0 This Week
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  • 8
    Minisign

    Minisign

    A dead simple tool to sign files and verify digital signatures

    Minisign is a lightweight command-line utility designed for generating and verifying digital signatures with a strong focus on simplicity, security, and portability. It uses the modern Ed25519 public-key cryptographic system to produce fast and compact signatures, making it well-suited for software distribution and file integrity verification. The tool is intentionally minimalistic, performing a single task efficiently without unnecessary complexity, which makes it easy to integrate into...
    Downloads: 0 This Week
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  • 9
    iText Core/Community

    iText Core/Community

    iText for .NET is the .NET version of the iText library

    iText Core/Community (previously known as iTextSharp) is a high-performance, battle-tested library that allows you to create, adapt, inspect, and maintain PDF documents, allowing you to add PDF functionality to your software projects with ease. It is also available for Java. For more advanced examples, refer to our Knowledge Base or the main Examples repo. You can find C# equivalents to the Java Signing examples here, though the Java code is very similar since they have the same API. Some of...
    Downloads: 0 This Week
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  • 10
    Sign-In with Ethereum

    Sign-In with Ethereum

    Sign-In with Ethereum library

    Sign-In with Ethereum is a new form of authentication that enables users to control their digital identity with their Ethereum account and ENS profile instead of relying on a traditional intermediary. Already used throughout web3, this is an effort to standardize the method with best practices and to make it easier for web2 services to adopt it. Sign-In with Ethereum describes how Ethereum accounts authenticate with off-chain services by signing a standard message format parameterized by scope, session details, and security mechanisms (e.g., a nonce). ...
    Downloads: 0 This Week
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  • 11
    Ordinals

    Ordinals

    Rare and exotic sats

    Ordinal theory concerns itself with satoshis, giving them individual identities and allowing them to be tracked, transferred, and imbued with meaning. Satoshis, not bitcoin, are the atomic, native currency of the Bitcoin network. One bitcoin can be sub-divided into 100,000,000 satoshis, but no further. Ordinal theory does not require a sidechain or token aside from Bitcoin, and can be used without any changes to the Bitcoin network. It works right now. ord is an index, block explorer, and...
    Downloads: 2 This Week
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  • 12
    PDF Digital Signature is a lightweight, user-friendly freeware application designed to help you securely add digital signatures to your PDF documents. Whether you need to sign contracts, agreements, or any other PDF files, this tool offers a simple solution for easily digitally signing your documents. With PDF Digital Signature, you can ensure the integrity and authenticity of your PDF files by digitally signing them using industry-standard encryption and signature algorithms. ...
    Downloads: 3 This Week
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  • 13
    JSignPdf

    JSignPdf

    Add digital signatures to PDF documents - GUI and CLI, cross-platform

    JSignPdf is a free, open-source Java application for signing PDF documents with digital certificates. It provides a graphical desktop interface for everyday users and a command-line mode for scripted and server-side workflows. Supported capabilities include PKCS#12 keystores, smartcards and hardware tokens (PKCS#11), Windows keystore integration, visible signatures with custom images and positioning, timestamp authority (TSA) support, OCSP/CRL revocation checks, certification signatures, and PDF encryption. ...
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    Downloads: 719 This Week
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  • 14
    eMark

    eMark

    Free and open-source PDF signing and verification application.

    eMark is a free and open-source PDF signing and verification application – a powerful Adobe Reader alternative that enables you to securely sign, verify, timestamp, and protect PDF documents using: 🔑 USB tokens and HSM (PKCS#11) 📜 PKCS#12/PFX certificates 💻 Windows certificate store Works seamlessly on Windows, Linux, and macOS with an Adobe Reader-like interface featuring professional signature verification capabilities. Built for individuals, enterprises, and government...
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    Downloads: 0 This Week
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  • 15
    Cyphernight-MAX SEC
    Dexmond.com is the official website of Dexmond Technologies, dedicated to CypherNight: MAX-SEC V3, a professional-grade, multi-platform data encryption suite designed for securing, digitally signing, and managing sensitive files with uncompromising security. The core tool combines military-strength cryptography — AES-256-GCM for symmetric encryption, RSA-4096 (with OAEP padding) for asymmetric operations, Ed25519 digital signatures, and Argon2id for secure passphrase-based key derivation — to protect data against brute-force, offline, and alteration attacks. ...
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    Downloads: 0 This Week
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  • 16
    Launch4j Executable Wrapper
    Cross-platform Java executable wrapper for creating lightweight Windows native EXEs. Provides advanced JRE search, application startup configuration and better user experience.
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    Downloads: 2,945 This Week
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  • 17
    CovidPass

    CovidPass

    Web app for adding EU Digital COVID Certificates to your wallet apps

    This web app offers the ability to add your EU Digital Covid Vaccination Certificates as a pass into your favorite wallet apps on iOS/watchOS or Android/wearOS. CovidPass accomplishes this without sending your data to a server and instead only uses a hashed representation for the signing step. Add your COVID European Digital Certificate to your favorite Wallet application for your mobile.
    Downloads: 0 This Week
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  • 18
    End-To-End

    End-To-End

    End-To-End is a crypto library to encrypt, decrypt, digital sign

    End-to-End was a client-side encryption project that prototyped OpenPGP-compatible, end-to-end encrypted messaging in the browser. The idea was to move cryptographic operations entirely to the user’s machine—key generation, encryption, and signature—so messages remain unreadable to intermediaries. It packaged a JavaScript crypto library, UI elements, and a browser extension workflow that could integrate with webmail-style UIs without server changes. The codebase emphasized careful key...
    Downloads: 0 This Week
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  • 19
    GRAMD® Personal Signature

    GRAMD® Personal Signature

    Digital Signature for PDF documents in Spanish

    Eng: Digital Signature with x.509 certificates and smartcards for PDFand PAdES format documents in Spanish for Windows OS (8 and 10). Esp: Firma Digital de documents electrónicos PDF en formato PAdES con certificados digitales X.509 y tokens criptográficos en español.
    Downloads: 0 This Week
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  • 20
    Bitcoin Armory

    Bitcoin Armory

    Python-Based Bitcoin Software

    Bitcoin Armory is an advanced Bitcoin wallet management platform focused on security, cold storage, and power-user features. Designed for technically inclined users, it provides tools for managing private keys offline, signing transactions without exposing wallets to the internet, and creating air-gapped setups. Armory offers multi-signature support, deterministic wallets, and secure backups, making it suitable for enterprise-grade or high-value Bitcoin storage.
    Downloads: 4 This Week
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  • 21
    GMR Digital Signature System

    GMR Digital Signature System

    GMR digital signature system

    Private keys are insecure in cloud server infrastructure. Chrome: right click - translate into English! https://www.bsi.bund.de/DE/Presse/Pressemitteilungen/Presse2018/Spectre-NG_18052018.html System that creates key pairs and digital signatures and is based on the presumed difficulty of prime factorization. Please install on a virtual machine with Linux! Windows is not supported! German: System, das SchlĂĽsselpaare und digitale Signaturen erstellt, und auf der vermuteten...
    Downloads: 0 This Week
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  • 22
    StrongKey CryptoEngine

    StrongKey CryptoEngine

    FIDO strong authentication, encryption, digital signature engine

    StrongKey CryptoEngine (SKCE) 2.0 is a "crypto Swiss Army knife" server to perform cryptographic functions through web services, while freeing application developers to focus on business functionality. Its modules include: - A FIDO Engine to support FIDO U2F key registrations/authentications - An encryption engine to encrypt/decrypt files using AES/TDES keys - Escrowing keys to on-premises key management system (StrongAuth KeyAppliance/SAKA) - Integration to cloud storage services...
    Downloads: 0 This Week
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  • 23
    AVSEdit Plus

    AVSEdit Plus

    An AviSynth script editor with side by side preview and encoding GUI

    ...This is why Windows might block it from running showing a notification: "Windows SmartScreen prevented an unrecognized app from starting" or "The publisher could not be verified". Digital signing takes time and money. Until the product is signed, please click "More info" and then "Run Anyway". I assure You the code is perfectly safe, You may check the source code in the "Files" section.
    Downloads: 4 This Week
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  • 24

    Digital signing using a Smart Card

    Java code that enables you to sign documents using a smart card.

    With this library, you'll be able to access a smart card and extract its information. If the smart card contains a key store, you can use it to create digital signatures. This library currently implements signing of PDF documents using the Belgian eID.
    Downloads: 0 This Week
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  • 25
    Digital Signature tools, including a cross-platform signing applet and the server-side code to verify and validate generated signatures. Project has been moved to GitHub: https://github.com/mranest/digsig
    Downloads: 0 This Week
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