Open-source PDF annotation and drawing tool built for privacy. Sketch and annotate PDFs with natural pen-like precision, drawing tablet support. SvelteKit + Tauri.

A tool to sign PDF files. With Linux support.

PDFSigner is a multipurpose PDF signer and verifier application for Advanced Electronic Signature (AES) and Qualified Electronic Signature (QES)

PDF signing utility supporting GPG and Sigstore (Google, GitHub, Microsoft accounts / keyless OIDC) signatures, multi-party signing, making it easy to sign and verify documents without heavyweight PDF signing stacks, making your PDFs authentic, tamper-proof, fully compatible with regular readers; all while costing zero-dollars to use.

No description provided.

Cross-platform Python client for ARX CoSign electronic signatures via SOAP API

A vue PDF editor component

Sign PDFs with PAdES standard, using EU and Brazil's signature profiles.

Design and assets for Documenso.

Windows executable for sign a PDF with a certificate and a hanwritten signature

Trexo PDF Signer is a professional-grade, open-source application designed for creating legally binding digital signatures on PDF documents. Built with enterprise security standards in mind, it provides seamless integration with hardware security modules (HSM), software certificates, and native platform keystores.

PAdES LTV PDF signer with Timestamp & SHA-256, C# Console App

Angular Library to sign PDF Files using ID Austria

A native Linux PDF viewer and signing tool with extensive digital signature customization and hardware token support.

🖨️ Edit, sign, merge, and split PDFs in your browser for free—no uploads or watermarks. Enjoy privacy-first tools that keep files on your device.

A Go library for PDF digital signatures with comprehensive support for ETSI standards, visual signatures, timestamps, and cloud-based signing.

A GNOME application for digitally signing PDF files

This is a Node.js API for signing PDF documents using certificates

An unofficial wrapper around the ConsignO Cloud API.

Sign and stamp your documents in one click

Spring Boot–based digital signature platform built with Kotlin, enabling secure, tamper-proof PDF signing and verification workflows. It supports PKCS#7 detached digital signatures, visible signature appearances, and multi-party signing flows (Seller → Buyer) while preserving signature integrity using incremental PDF updates.

Secure, serverless document signing using your email and password to derive keys. Features Bitcoin timestamping for permanent proof and browser-based privacy.

Web app demo for digital document signing and verification. Features RSA-PSS (SHA-512) cryptography and QR code embedding for physical-to-digital validation. Developed for DIF Jalisco @ Tec de Monterrey.

A lightweight, low level PDF library that works in the browser and Node

📄 Simplify secure and compliant digital signatures for PDFs with Trexo PDF Signer, an open-source solution tailored for enterprise needs.

Sign PDFs for free in a few clicks

Description: Bulk PDF Digital Signature Utility using DSC