MobiPDF (formerly PDF Extra) is an intuitive and powerful PDF editor and reader designed for today’s modern user - the cost-efficient alternative to Adobe Acrobat Pro you’ve been looking for.
FEATURES OVERVIEW:
PDF Viewer and Reader: Switch between page views or use "Read Mode" for distraction-free reading.
Create and Edit PDFs: Modify text and images or start with a blank PDF.
Convert to Office Formats: Easily turn PDFs into Word, Excel, PowerPoint, and image files.
Leverage OCR: Transform scanned documents into searchable PDFs.
Organize PDFs: Combine, split, reorder, and compress documents.
Markup and Comment: Highlight, annotate, and add bookmarks or stamps.
Fill PDFs: Seamlessly fill forms or create ones from scratch.
Sign PDFs: Sign your documents anywhere—no ink required!
Secure Your Work: Protect files with passwords, digital signatures, and 256-bit encryption.
Offline Mode: Full functionality without internet access.
Translate PDFs
Learn more
Okyline is an Executable Data Design (EDD) platform for declarative data validation contracts and measurable operational data quality.
Instead of maintaining disconnected specifications, validators, tests, and quality dashboards, Okyline uses a single executable contract as the operational source of truth for validation and flow quality monitoring.
The same readable contract drives multi-format validation, deterministic execution, quality measurement, data quality gate, and historical quality analytics across APIs, events, files, LLM structured outputs, and enterprise data flows.
Community Edition provides the open specification, a free Java validation runtime, a public Claude AI assistant for contract generation, and a free online studio for executable JSON validation contracts and JSON Schema transpilation.
Enterprise Edition supports direct validation of JSONL, XML, CSV, FIXED, and EDI flows, data quality gate, and operational quality dashboards, all without databases
Learn more
Koi Editor
Koi Editor is a fast, minimal, scriptable code and text editor for macOS, designed around low typing latency, large-file performance, and local workflows.
Koi provides multi-cursor editing, multiple synchronized views of the same document, project-wide search, file and buffer navigation, syntax highlighting, code completion, configurable themes and keybindings, and extensive text-editing commands.
The editor is designed to remain responsive with large source files, logs, and structured text, and has been tested with files containing tens of millions of lines while retaining syntax highlighting and core editing functionality.
Optional AI features support local models through Ollama for code completion and inline assistance. Koi can operate entirely offline, requires no account, and includes no telemetry.
Koi is built specifically for Apple Silicon Macs and combines a custom editing engine with native macOS integration.
Learn more