InkLayer

InkLayer is a notebook for reading, research and handwritten thinking. Handwriting, PDFs and Markdown notes share one canvas, and everything is saved as files you own. Write notes as real Markdown files. Open PDFs without modifying the original document. Draw with pens, highlighters, shapes and erasers on top of notes or PDF pages. Show, lock, reorder and fade layers so sources, handwritten derivations and your summaries stay separate. Core features: - A library of real Markdown files, kept on your device. - Handwriting and highlights on PDFs, with the original file untouched. - Select PDF text to copy, translate or add to a note, or draw a lasso around a passage to extract it into a note with its page number. - Shape recognition, a precision eraser, a full lasso (move, resize, rotate, recolor, copy and paste) and a laser pointer. - Layers with visibility, lock, opacity and order. - Markdown preview with math, wikilinks, tags, backlinks and a graph view. - Flowcharts: connect cards on a canvas with arrows. - Databases: organize documents in a table, filter and sort it, and export it as a PDF. - Handwrite while recording and replay the ink with the audio; make transcripts on the device and turn on live captions in class. - Search across your library, including text inside PDFs, recording transcripts and handwriting recognized on the device. - Sync through iCloud, Google Drive or your own WebDAV server; conflicts keep both versions. - Present a PDF or a canvas full screen with your handwriting on it: a laser pointer, a pen for writing on the slides, and pages turned from the keyboard or a presentation remote. - Open PDFs and Markdown files in InkLayer straight from Files, Mail, Safari and other apps. - E-ink mode: grayscale, high contrast, no animation. - Export and import your whole library without an account. Translation needs iPadOS 18 or iOS 18 and later; transcripts and live captions need iPadOS 26 or iOS 26 and later. Free to download, with every feature: handwrite in 3 documents for free. InkLayer Lifetime is one purchase that removes the limit, and every future on-device feature update is included. Nothing you write is ever locked. No account is required and there is no tracking or ads. Handwriting recognition, transcripts and translation happen on your device, and your library stays portable.