E-Sign app is a powerful desktop electronic signature application that supports electronic signatures in a variety of document formats. It offers an intuitive user interface and extensive signing tools, allowing users to easily add electronic signatures, timestamps, and digital certificates to a variety of documents. Key Features Document Support PDF Documents: Full support for viewing, signing, and exporting PDF files DOCX Documents: Supports signing Microsoft Word documents Image Files: Supports PNG, JPG, and JPEG Signatures with formatted images Multi-page support: Supports signing and navigating multi-page documents Signature tools Handwritten signatures: Provides the ability to draw handwritten signatures on the canvas Text signatures: Supports text signatures in multiple font styles Image signatures: Supports uploading images as signatures Seal function: Provides digital seals in multiple styles Background processing: Supports transparent background and background removal options Timestamp function Multiple formats: Supports full format, short format, ISO format, and custom format Flexible positioning: Supports top, bottom, left, right, and center positioning Style customization: Adjustable color, size, and font style Live preview: Provides a real-time preview of the timestamp effect Digital certificates Certificate management: Supports the creation, import, export, and management of digital certificates Certificate verification: Provides certificate validity verification function Certificate types: Supports multiple types of digital certificates Batch operations: Supports batch deletion and export of certificates Signature verification Integrity verification: Verifies the integrity and validity of signatures Detailed report: Generates a detailed verification report Status display: Displays the verification status of the signature (valid, suspicious, etc.) Report export: Supports the export function of verification reports Operation History Operation Log: Automatically records all operation history Timestamp: Displays the specific time of the operation Local Storage: History records are saved in local storage Real-time Update: Operation history is updated in real time File Processing Multi-Format Support: Supports import and export of multiple document formats Clean Export: Provides clean mode document export, ensuring only document content and signatures are included Format Preservation: Maintains the original document format and style Batch Processing: Supports batch document processing Security Features Local Processing: All file processing is performed locally to protect privacy Data Security: No sensitive data is transmitted to external servers Certificate Verification: Provides a complete digital certificate verification mechanism Signature Integrity: Ensures the integrity and immutability of signatures Use Scenarios Business Applications Contract Signing: Used for signing and managing electronic contracts Document Approval: Supports electronic document approval processes Legal Documents: Applicable to electronic signatures for legal documents Business Agreements: Supports electronic signatures for business agreements Enterprise Applications Internal Documents: Electronic signatures for internal enterprise documents Employee Agreements: Signatures for documents such as employee onboarding agreements Financial Documents: Signatures for financial statements, invoices, etc. Project Documents: Electronic signatures for project-related documents Personal Applications Personal Documents: Electronically sign personal documents Learning Materials: Sign learning-related documents Creative Works: Digitally sign creative works Personal Agreements: Sign personal agreements This electronic signature software provides a professional, secure, and easy-to-use electronic signature solution for individuals and businesses, making it a vital tool for the modern digital office.