Control how your documents get signed
Free open-source web software for signing PDF (alone or with others) and also organize pages, edit metadata and compress pdf
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)
📑 HTML5 Javascript Online Offline Browser Editor 📜 for PDF files for insert sign, images, photos, comments or annotations
Deprecated: replaced by LibreSign/pdf-elements, the Vue 3 PDF interaction component.
🔏 Sign PDFs with the portuguese citizen card (aka "cartão de cidadão")
Digitally sign PDF document from your phone using handwritten signature or image.
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.
Free, private PDF tools that run entirely in your browser: merge, split, compress, sign, redact, and more. No uploads, no server, open source.
一个强大的OFD/PDF签章工具，支持格式转换、文档加密、电子签名、数字印章和完整性保护。A powerful OFD/PDF signing tool that supports format conversion, document encryption,electronic signature, digital seal, and integrity protection.
Windows executable for sign a PDF with a certificate and a hanwritten signature
Free desktop PDF signer: draw signature and initials, place anywhere, add text boxes, zoom, resize, and export signed PDFs.
This repository contains examples to digitally sign and validate the PDF document using the Syncfusion PDF Library.
Firma massiva in formato PADES usando una smartcard
简录签 SimRecSign 是一个电子签署与流程审批系统：把纸质表单变成 PDF 电子模板，配置字段与多步签署流程后在线流转，最终生成带数字签名与防篡改审计记录的 PDF 文档。支持 PC 管理端与手机端（H5）双入口。
A quick start Blazor project that shows how to create a PDF digital signature, customize it, add a timestamp, and add multiple signatures to a PDF document using Syncfusion PDF Library.
Node.js PDF digital signature example using PFX/P12 certificates. Sign PDFs programmatically with JavaScript, Express and the PDFSignify API.
Google KSM Signer implementation for pyHanko
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