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PDF tagging, manual repair, and built-in validation

Browser PDF remediation with simple and advanced editing paths

Open-source validation for PDF/A and PDF/UA

Command-line PDF validation, page layout, and resource tools

Define JavaScript and TypeScript schemas that validate data and infer its types.

Online PDF editing with page-layout and archive tools

WordPress forms with shared defaults and individual validation settings

Write programmable configuration with validation and generate JSON, YAML, and other output formats.

A Windows PDF toolkit for conversion, printing, and assembly

PDF conversion, OCR, and page processing in a browser

PDF assembly, extraction, numbering, and batch utilities

Collaborative PDF editing and fillable forms

A YAML-based CLI for asserting the installed packages, services, files, ports, and other state of a system.

Validate Python data against typed models and generate matching JSON Schema.

PDF conversion with editing and batch tools for Windows

PDF reading, forms, and annotations on mobile devices

Windows PDF editing with signing and batch redaction tools

Automate PDF conversion, parsing, and document operations

Windows PDF editing with OCR, export, and document snapshots

Define and validate data and configuration with a language that combines values and constraints.

Self-host PDF processing with a browser interface and API

PDF conversions and document cleanup in one suite

PDF editing and conversion with desktop and mobile editions

Form visibility rules with validation that applies only to shown fields