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Self-host PDF processing with a browser interface and API

Compress PDFs and Office files without changing their formats

Windows batch PDF processing with command-line control

AI tools for audio and video processing

An audio-programming system for instruments and effects

Compare compressed image copies in real time

Process astrophotography with signal-aware tools

Process and measure astrophotography images

Video conversion with batch processing and preparation tools

Prepare media conversions and reusable FFmpeg command scripts

Turn garment photographs into model-based fashion presentation images.

Build media-processing graphs from reusable components

PDF editing, OCR, forms, and page organization

Interpret and process PDF and PostScript documents

Prepare forensic timeline data with log2timeline tools

An open-source desktop PDF toolkit with inspection and CLI tools

Batch audio conversion through several encoder backends

Render, inspect, extract, and restructure PDFs from a terminal

Recipes and kitchen stories from Carla Lalli

Segment, align and visualize volumetric image data

AI background removal tool with a free web app, API, and plugins

A Python property-based testing library that generates inputs to challenge the properties your code should preserve.

A shared expense list for homes, trips and other groups

Run command-line or Node.js accessibility checks against web pages and local HTML.