LibreSign/libresign
Sep 2024 – Dec 2025
14 Months active
Languages Used
JavaScriptSCSSVueVue.jsGherkinPHPJSONMarkdown
Technical Skills
Vue.jscomponent designfront end developmentstate managementAPI DevelopmentAPI integration
Vitor Mattos
PROFILE
Vitor Mattos
Vitor worked extensively on the LibreSign/libresign repository, delivering end-to-end features and reliability improvements across document signing workflows. Over 14 months, he engineered robust backend and frontend solutions using PHP, JavaScript, and Vue.js, focusing on API development, PDF processing, and UI/UX enhancements. His work included implementing validation endpoints, signature workflows, and custom template support, while also strengthening code quality through static analysis, type hinting, and comprehensive test automation. Vitor addressed data integrity, security, and accessibility, refactoring core modules for maintainability and performance. His disciplined approach resulted in a stable, scalable codebase that supports safer releases and improved user experience.
Overall Statistics
Feature vs Bugs
49%Features
Repository Contributions
788Total
Bugs
230
Commits
788
Features
225
Lines of code
55,099
Activity Months14
Your Network
19 people
Work History
December 2025
1 Commits • 1 Features
Dec 1, 2025Month: 2025-12 — Focused on strengthening PHP type safety in LibreSign/libresign by introducing comprehensive type hints and aligning with Psalm static analysis. Delivered a targeted feature to improve reliability and maintainability. Addressed Psalm issues via commit 9e545bb673fc0431254a24a75bd8d74cff7a8604, resulting in clearer type contracts, better tooling integration, and safer refactors. Overall, improved code quality, faster CI feedback, and stronger foundation for future features.
1 Commits • 1 Features
Dec 1, 2025Month: 2025-12 — Focused on strengthening PHP type safety in LibreSign/libresign by introducing comprehensive type hints and aligning with Psalm static analysis. Delivered a targeted feature to improve reliability and maintainability. Addressed Psalm issues via commit 9e545bb673fc0431254a24a75bd8d74cff7a8604, resulting in clearer type contracts, better tooling integration, and safer refactors. Overall, improved code quality, faster CI feedback, and stronger foundation for future features.
December 2025
October 2025
3 Commits • 2 Features
Oct 1, 2025October 2025 (LibreSign/libresign): Delivered reliability and localization improvements centered on static analysis quality and UI internationalization, enabling safer code evolution and a better user experience.
October 2025
3 Commits • 2 Features
Oct 1, 2025October 2025 (LibreSign/libresign): Delivered reliability and localization improvements centered on static analysis quality and UI internationalization, enabling safer code evolution and a better user experience.
August 2025
1 Commits
Aug 1, 2025Month 2025-08: In LibreSign/libresign, delivered a critical data consistency improvement by normalizing emails to lowercase before the blur/hash step. This ensures identical emails, regardless of casing, yield identical hashing results, preventing duplicates and inconsistent privacy-preserving transformations. Implemented a minimal, well-scoped code change and added end-to-end tests across multiple casing scenarios. Updated CI to run the new tests, enabling earlier regression detection. Business impact: improved data integrity, reliability of identity processing, and privacy compliance; Technical impact: demonstrated disciplined debugging, test-driven development, and robust change management.
1 Commits
Aug 1, 2025Month 2025-08: In LibreSign/libresign, delivered a critical data consistency improvement by normalizing emails to lowercase before the blur/hash step. This ensures identical emails, regardless of casing, yield identical hashing results, preventing duplicates and inconsistent privacy-preserving transformations. Implemented a minimal, well-scoped code change and added end-to-end tests across multiple casing scenarios. Updated CI to run the new tests, enabling earlier regression detection. Business impact: improved data integrity, reliability of identity processing, and privacy compliance; Technical impact: demonstrated disciplined debugging, test-driven development, and robust change management.
August 2025
July 2025
8 Commits • 1 Features
Jul 1, 2025July 2025 summary for LibreSign/libresign: Delivered targeted bug fixes, UI improvements, and CI/maintenance work that reduce user errors, improve rendering on large viewports, and strengthen deployment reliability.
July 2025
8 Commits • 1 Features
Jul 1, 2025July 2025 summary for LibreSign/libresign: Delivered targeted bug fixes, UI improvements, and CI/maintenance work that reduce user errors, improve rendering on large viewports, and strengthen deployment reliability.
June 2025
52 Commits • 9 Features
Jun 1, 2025June 2025 (LibreSign/libresign) delivered a focused set of quality and maintainability improvements, emphasizing test coverage, reliability, and code health. Key features delivered include expanded unit testing scaffolding and scenario expansion for the visible elements class, and typing enhancements across the codebase. Major bugs fixed include robust input validation and user access safeguards, dependency injection improvements, and config-driven AuthorityInfoAccess generation fixes. The overall impact is a more stable, secure, and maintainable codebase with faster debugging and easier future changes, enabling safer releases. Technologies demonstrated: PHP typing, data providers in tests, static analysis/CI hygiene, and refactor-driven improvements (Helper class for config, observability enhancements).
52 Commits • 9 Features
Jun 1, 2025June 2025 (LibreSign/libresign) delivered a focused set of quality and maintainability improvements, emphasizing test coverage, reliability, and code health. Key features delivered include expanded unit testing scaffolding and scenario expansion for the visible elements class, and typing enhancements across the codebase. Major bugs fixed include robust input validation and user access safeguards, dependency injection improvements, and config-driven AuthorityInfoAccess generation fixes. The overall impact is a more stable, secure, and maintainable codebase with faster debugging and easier future changes, enabling safer releases. Technologies demonstrated: PHP typing, data providers in tests, static analysis/CI hygiene, and refactor-driven improvements (Helper class for config, observability enhancements).
June 2025
May 2025
97 Commits • 30 Features
May 1, 2025May 2025, LibreSign/libresign — delivered a set of reliability, quality, and business-value improvements spanning dependencies, tests, validation, PDF workflow, and user notifications. Key outcomes include: (1) reduced maintenance risk and security exposure through PHP/JS dependency upgrades; (2) enhanced release confidence via expanded integration test coverage and endpoint updates; (3) strengthened data integrity and user experience from robust validation and standardized error handling; (4) stabilized PDF loading/signing flows with correct object handling; and (5) improved user notifications and admin UI, supported by thorough documentation and changelog updates. Overall, these changes enable safer, faster releases, higher reliability in production, and a smoother end-user experience. Technologies and skills demonstrated include PHP/JS dependency management, test automation and stabilization, validation logic, error handling architecture, PDF processing, notification workflows, UI/UX enhancements, and documentation practices.
May 2025
97 Commits • 30 Features
May 1, 2025May 2025, LibreSign/libresign — delivered a set of reliability, quality, and business-value improvements spanning dependencies, tests, validation, PDF workflow, and user notifications. Key outcomes include: (1) reduced maintenance risk and security exposure through PHP/JS dependency upgrades; (2) enhanced release confidence via expanded integration test coverage and endpoint updates; (3) strengthened data integrity and user experience from robust validation and standardized error handling; (4) stabilized PDF loading/signing flows with correct object handling; and (5) improved user notifications and admin UI, supported by thorough documentation and changelog updates. Overall, these changes enable safer, faster releases, higher reliability in production, and a smoother end-user experience. Technologies and skills demonstrated include PHP/JS dependency management, test automation and stabilization, validation logic, error handling architecture, PDF processing, notification workflows, UI/UX enhancements, and documentation practices.
April 2025
136 Commits • 34 Features
Apr 1, 2025April 2025 (LibreSign/libresign) monthly summary: Key features delivered expanded the signing experience and configurability, while essential bug fixes improved reliability and user experience. The month also strengthened testing, performance, and accessibility, delivering measurable business value in document signing workflows. Key features delivered: - Signature display and render modes: frontend support for showing signatures and render mode during signing, enabling clearer signer feedback and improved document fidelity. (commits: d680f35abc3419fedadb54a8600d9ab6756bb453; 885ad6ca996feef7e85a8acd31f2cf86f2523dd1) - Signer metadata and signer email as template variable: ability to display signer name/description and use signer email in templates, enhancing personalization and auditability. (commits: 6c661701bbd1fc4cbe85f53e3adebe66ac126bcd; 7e5edd079631bc9a07ba8c758ebaa823db9c6872; f2d7592a6382a608cee5181df641c771f16e7f74) - Capabilities support and certificate policy administration: added capability checks and backend support for certificate policy settings, improving policy governance and compliance. - Unit tests and test coverage improvements: expanded unit tests and related refactors to raise reliability and maintainability. - UI/UX and accessibility enhancements: accessibility tweaks, responsive UI sizing, and performance improvements to improve readability and interaction. Major bugs fixed: - Error handling and messaging improvements: robust handling of error messages and prevention of unexpected UI failures. (commits: a32e91151c4cc614cfb541e77104c77b5b15113e; 存在 multiple?) - Header and lint/quality fixes: resolved header rendering issues and linter-driven cleanups to maintain code quality. - PDF rendering alignment and scaling: corrected preview versus stamp alignment, and updated scaling logic for PDF generation and JSignPdf integration. - JavaScript error prevention and value handling: fixes to prevent JS errors and to ensure correct value retrieval (is set, not get). - Metadata and preview robustness: improved robustness around metadata collection and preview availability checks to prevent edge-case failures. Overall impact and Accomplishments: - Significantly improved signing workflow clarity, reliability, and personalization, reducing user confusion and support overhead. Enhanced test coverage and quality processes increase release confidence and future velocity. Improved rendering fidelity for PDFs and signatures reduces post-release defects and customer-facing issues. Technologies/Skills demonstrated: - Frontend rendering and UX for signatures, template variables, and accessibility enhancements. - Backend policy/certificate policy integration and capabilities handling. - Comprehensive testing strategy: unit, integration, and mock-based testing frameworks. - CI/CD readiness, linting, and deployment scaffolding improvements.
136 Commits • 34 Features
Apr 1, 2025April 2025 (LibreSign/libresign) monthly summary: Key features delivered expanded the signing experience and configurability, while essential bug fixes improved reliability and user experience. The month also strengthened testing, performance, and accessibility, delivering measurable business value in document signing workflows. Key features delivered: - Signature display and render modes: frontend support for showing signatures and render mode during signing, enabling clearer signer feedback and improved document fidelity. (commits: d680f35abc3419fedadb54a8600d9ab6756bb453; 885ad6ca996feef7e85a8acd31f2cf86f2523dd1) - Signer metadata and signer email as template variable: ability to display signer name/description and use signer email in templates, enhancing personalization and auditability. (commits: 6c661701bbd1fc4cbe85f53e3adebe66ac126bcd; 7e5edd079631bc9a07ba8c758ebaa823db9c6872; f2d7592a6382a608cee5181df641c771f16e7f74) - Capabilities support and certificate policy administration: added capability checks and backend support for certificate policy settings, improving policy governance and compliance. - Unit tests and test coverage improvements: expanded unit tests and related refactors to raise reliability and maintainability. - UI/UX and accessibility enhancements: accessibility tweaks, responsive UI sizing, and performance improvements to improve readability and interaction. Major bugs fixed: - Error handling and messaging improvements: robust handling of error messages and prevention of unexpected UI failures. (commits: a32e91151c4cc614cfb541e77104c77b5b15113e; 存在 multiple?) - Header and lint/quality fixes: resolved header rendering issues and linter-driven cleanups to maintain code quality. - PDF rendering alignment and scaling: corrected preview versus stamp alignment, and updated scaling logic for PDF generation and JSignPdf integration. - JavaScript error prevention and value handling: fixes to prevent JS errors and to ensure correct value retrieval (is set, not get). - Metadata and preview robustness: improved robustness around metadata collection and preview availability checks to prevent edge-case failures. Overall impact and Accomplishments: - Significantly improved signing workflow clarity, reliability, and personalization, reducing user confusion and support overhead. Enhanced test coverage and quality processes increase release confidence and future velocity. Improved rendering fidelity for PDFs and signatures reduces post-release defects and customer-facing issues. Technologies/Skills demonstrated: - Frontend rendering and UX for signatures, template variables, and accessibility enhancements. - Backend policy/certificate policy integration and capabilities handling. - Comprehensive testing strategy: unit, integration, and mock-based testing frameworks. - CI/CD readiness, linting, and deployment scaffolding improvements.
April 2025
March 2025
74 Commits • 27 Features
Mar 1, 2025March 2025 focused on stability, data correctness, and UX enhancements that strengthen reliability, compliance, and branding capabilities while reducing risk in production. Key outcomes include targeted dependency upgrades with improved test hygiene, a critical database migration to datetime, ATOM-based date formatting standardization across APIs, and user-facing improvements for signature templating and background imagery.
March 2025
74 Commits • 27 Features
Mar 1, 2025March 2025 focused on stability, data correctness, and UX enhancements that strengthen reliability, compliance, and branding capabilities while reducing risk in production. Key outcomes include targeted dependency upgrades with improved test hygiene, a critical database migration to datetime, ATOM-based date formatting standardization across APIs, and user-facing improvements for signature templating and background imagery.
February 2025
24 Commits • 2 Features
Feb 1, 2025February 2025 recap for LibreSign/libresign: Delivered the Visible Signature Information Note feature and completed a broad suite of quality and maintenance improvements that drive reliability and business value. Key feature delivered: Visible Signature Information Note (commit 307aadc403a389574b23be0229e290584d0a492d). Major bugs fixed spanned return types, certificate subject name validation, UI localization, input sanitization, access restrictions on validation endpoints, and user existence checks (commits 435d37eb833909d1664fb1e318e047dc8d47ceff, 7af3a312fb033d431cfac4813ae65f7653314ad1, a4677efd8d2d2173f67c00cc93df1795f13691b7, 8b3a9007f18f9d172568c9ed2ppa4514c, b4c12293ceff0654d362ddcb7ae74854a1630dc3, 912af7e961a0a39e2e9b2724e43fedc764115fdb). Documentation and testing improvements included integration tests for page URLs, CI checks for doc freshness, and updates to OpenAPI/API docs and changelog (commits 2bc79ef577c5e07d37c8a2dce2ea1c29cf8541c0, 9ae584c3c25feabac363a062275f1589740958fb, 038ab8672715ca56542da96443e336c6f7be6829, 3c943a3679da9d1ff520342bb71db4e72e1ab862, c71a4a55c51aed238939a3aae18a5d61c1585873).
24 Commits • 2 Features
Feb 1, 2025February 2025 recap for LibreSign/libresign: Delivered the Visible Signature Information Note feature and completed a broad suite of quality and maintenance improvements that drive reliability and business value. Key feature delivered: Visible Signature Information Note (commit 307aadc403a389574b23be0229e290584d0a492d). Major bugs fixed spanned return types, certificate subject name validation, UI localization, input sanitization, access restrictions on validation endpoints, and user existence checks (commits 435d37eb833909d1664fb1e318e047dc8d47ceff, 7af3a312fb033d431cfac4813ae65f7653314ad1, a4677efd8d2d2173f67c00cc93df1795f13691b7, 8b3a9007f18f9d172568c9ed2ppa4514c, b4c12293ceff0654d362ddcb7ae74854a1630dc3, 912af7e961a0a39e2e9b2724e43fedc764115fdb). Documentation and testing improvements included integration tests for page URLs, CI checks for doc freshness, and updates to OpenAPI/API docs and changelog (commits 2bc79ef577c5e07d37c8a2dce2ea1c29cf8541c0, 9ae584c3c25feabac363a062275f1589740958fb, 038ab8672715ca56542da96443e336c6f7be6829, 3c943a3679da9d1ff520342bb71db4e72e1ab862, c71a4a55c51aed238939a3aae18a5d61c1585873).
February 2025
January 2025
250 Commits • 71 Features
Jan 1, 2025January 2025 (2025-01) delivered measurable business value through new validation capabilities, stronger file integrity checks, and UI enhancements for PDF handling. Key outcomes include a new data-validation endpoint for uploaded files, persistence of signed-file hashes for integrity verification, improved validation-from-upload workflow, and enhanced PDF metadata display (total pages and size) in the UI. The month also advanced code quality with unit-test scaffolding, improved exception handling, dependency updates, and performance-focused refactors to reduce failure modes and improve maintainability.
January 2025
250 Commits • 71 Features
Jan 1, 2025January 2025 (2025-01) delivered measurable business value through new validation capabilities, stronger file integrity checks, and UI enhancements for PDF handling. Key outcomes include a new data-validation endpoint for uploaded files, persistence of signed-file hashes for integrity verification, improved validation-from-upload workflow, and enhanced PDF metadata display (total pages and size) in the UI. The month also advanced code quality with unit-test scaffolding, improved exception handling, dependency updates, and performance-focused refactors to reduce failure modes and improve maintainability.
December 2024
46 Commits • 13 Features
Dec 1, 2024December 2024 — LibreSign/libresign: Delivered high-impact quality and reliability improvements and foundational features that strengthen security, observability, and UX. Key feature deliveries include a core logging infrastructure, configurable signature hash algorithms, rate limiting for LibreSign, and user-facing enhancements (validation page rewrite, signer data augmentation, and notifications). Major bugs fixed significantly improved reliability: admin route access control, user-facing error messaging, prevention of infinite loops, correct signature method loading, robust handling of empty backend responses, and timeout/test stability. The combination of these efforts led to reduced runtime errors, faster issue diagnosis, and a more predictable release cycle. Technologies/skills demonstrated include PHP ecosystem hygiene (dependency bumps, code quality refactors), static analysis readiness (psalm/pcntl), typed properties, UID management, and comprehensive test stabilization.
46 Commits • 13 Features
Dec 1, 2024December 2024 — LibreSign/libresign: Delivered high-impact quality and reliability improvements and foundational features that strengthen security, observability, and UX. Key feature deliveries include a core logging infrastructure, configurable signature hash algorithms, rate limiting for LibreSign, and user-facing enhancements (validation page rewrite, signer data augmentation, and notifications). Major bugs fixed significantly improved reliability: admin route access control, user-facing error messaging, prevention of infinite loops, correct signature method loading, robust handling of empty backend responses, and timeout/test stability. The combination of these efforts led to reduced runtime errors, faster issue diagnosis, and a more predictable release cycle. Technologies/skills demonstrated include PHP ecosystem hygiene (dependency bumps, code quality refactors), static analysis readiness (psalm/pcntl), typed properties, UID management, and comprehensive test stabilization.
December 2024
November 2024
61 Commits • 28 Features
Nov 1, 2024November 2024 LibreSign/libresign monthly summary: Delivered end-to-end file management enhancements, stabilized signer workflows, and strengthened reliability and maintainability. Key features delivered include: File Deletion (allow deleting a file) to improve file lifecycle control and data hygiene; Save uploaded file to LibeSign on every upload to ensure immediate availability and auditability; UI/UX improvements for file list and signer actions (multi-file selection, bulk delete, footer) to boost efficiency; Dependency upgrades across the codebase to latest versions for security and compatibility; API documentation updates and changelog refresh to keep external integrators informed; Reliability/quality improvements including Unicode signer name handling and graceful handling of missing files to improve resilience. Major commits underpinning these efforts include 454b8d3..., f46ee43d..., 8d8d900e..., 19b40959..., 308c242d..., f48d4dc2..., e541ad3..., 91924f7..., 554b313..., a2c71052..., efa07b35..., 3e8fafab..., 429f5f34..., 68938b3b..., e08a7802....
November 2024
61 Commits • 28 Features
Nov 1, 2024November 2024 LibreSign/libresign monthly summary: Delivered end-to-end file management enhancements, stabilized signer workflows, and strengthened reliability and maintainability. Key features delivered include: File Deletion (allow deleting a file) to improve file lifecycle control and data hygiene; Save uploaded file to LibeSign on every upload to ensure immediate availability and auditability; UI/UX improvements for file list and signer actions (multi-file selection, bulk delete, footer) to boost efficiency; Dependency upgrades across the codebase to latest versions for security and compatibility; API documentation updates and changelog refresh to keep external integrators informed; Reliability/quality improvements including Unicode signer name handling and graceful handling of missing files to improve resilience. Major commits underpinning these efforts include 454b8d3..., f46ee43d..., 8d8d900e..., 19b40959..., 308c242d..., f48d4dc2..., e541ad3..., 91924f7..., 554b313..., a2c71052..., efa07b35..., 3e8fafab..., 429f5f34..., 68938b3b..., e08a7802....
October 2024
26 Commits • 6 Features
Oct 1, 2024October 2024 monthly performance highlights for LibreSign/libresign. Delivered significant user-facing enhancements to the signing workflow, strengthened data handling through a centralized store, and advanced code quality and reliability across the project. These efforts reduced risk, improved user experience, and set the foundation for scalable growth.
26 Commits • 6 Features
Oct 1, 2024October 2024 monthly performance highlights for LibreSign/libresign. Delivered significant user-facing enhancements to the signing workflow, strengthened data handling through a centralized store, and advanced code quality and reliability across the project. These efforts reduced risk, improved user experience, and set the foundation for scalable growth.
October 2024
September 2024
9 Commits • 1 Features
Sep 1, 2024September 2024 monthly summary for LibreSign/libresign. Focused on the File List feature overhaul and UI enhancements. Delivered a major UI/UX refactor of the file listing with filtering, multiple views, and improved file entry components and actions. Introduced FileEntry and FileEntryName components, added a context menu triggered by right-click, and enabled table-mode improvements. Performed targeted UI cleanups, eliminated an on-page selection checkbox to streamline interactions, and completed lint fixes to improve code quality and consistency across the feature.
September 2024
9 Commits • 1 Features
Sep 1, 2024September 2024 monthly summary for LibreSign/libresign. Focused on the File List feature overhaul and UI enhancements. Delivered a major UI/UX refactor of the file listing with filtering, multiple views, and improved file entry components and actions. Introduced FileEntry and FileEntryName components, added a context menu triggered by right-click, and enabled table-mode improvements. Performed targeted UI cleanups, eliminated an on-page selection checkbox to streamline interactions, and completed lint fixes to improve code quality and consistency across the feature.
Activity
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Quality Metrics
Correctness88.2%
Maintainability89.2%
Architecture82.4%
Performance83.2%
AI Usage20.4%
Skills & Technologies
Programming Languages
BashCSSGherkinGit IgnoreHTMLJSONJavaScriptLicenseMakefileMarkdown
Technical Skills
API DesignAPI DevelopmentAPI DocumentationAPI IntegrationAPI OptimizationAPI TestingAPI ValidationAPI integrationAccess ControlAccessibilityAsynchronous ProgrammingAttribute-Based Access ControlAutomationBDDBackend Development
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline