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Edit and copy image metadata online

Build an ordered batch image task list

Resize, rename and watermark photo batches

Resize photographs with reusable image profiles

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

A multi-format notebook for handwriting, PDFs, voice notes, and study documents.

A visual knowledge notebook for connecting research, highlights, and ideas on whiteboards.

An open-source iPad notebook for Apple Pencil writing and PDF markup.

A teaching whiteboard with video calls, lesson materials, and PDF or image annotation.

Write with Apple Pencil in an Obsidian vault and keep handwritten pages beside Markdown notes.

A shareable infinite drawing board for handwriting, tutoring, diagrams, and PDF markup.

An open-source desktop notebook for stylus handwriting, PDF markup, layers, and audio notes.

Handwritten study notes, PDF markup, audio capture, and AI-assisted review for students.

Write and annotate handwritten notes on Android with page layouts, linked notes, and PDF tools.

Recipe calculations connected to a brewing batch

Open-source video encoding with presets and batch queues

Audio batch conversion with normalization and preview

Batch video conversion with track selection and basic editing

Extract mixed documents into text, Markdown, HTML, and structured data

Develop, organize and layer photo edits

Correct and compress photo copies with a live preview

Retouch photos and repeat edits through macros

Preview repeated replacements across text files

Filter and revise sections across many text files