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Redline

A Mac app for marking up HTML and PDFs and exporting the marks as revision instructions for AI.

Redline icon Coming soon macOS 12 or later (Apple Silicon)
123 AI

Screens

Redline with marks on a web page, and the list of instructions and the Markdown on the right
Click an element and it gets a red outline and a number. The right side shows the list of marks and the Markdown, ready to hand over.
Drawing a box around an area of a PDF in Redline
On a PDF, draw a box around an area and attach an instruction. The text inside the box is quoted automatically.

What it does

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    01

    Mark up directly on the screen

    Open a web page or a local HTML file and click an element. It gets a red outline and a number, and you write your instruction beside the number.

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    02

    Mark up PDFs too

    On a PDF, draw a box around an area and attach an instruction. The text inside the box is quoted automatically.

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    03

    Export in four ways

    Export as Markdown, PDF, an image, or an annotated PDF. Redline can also output revision instructions in a form you can hand to an AI.

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    04

    Pick up where you left off

    Save the state of your work and load it again. Your marks stay even when the page is reloaded.

Free and Pro

FreePro
Markup on HTML Yes Yes
Markup on PDF — Yes
Export of annotated PDFs — Yes
Saving and loading your work — Yes
Markdown export 2 formats 4 formats
Watermark on exports Added None

Redline Pro is $19, a one-time purchase. It is still in preparation and cannot be bought yet. The conditions of sale are in the legal notice, and the conditions of use are in the Terms of Use.

Specifications

Requirements
macOS 12 or later (Apple Silicon)
Interface language
Japanese and English (follows the OS setting)
Price
Redline Pro: $19, a one-time purchase. Still in preparation, so it cannot be bought yet.
Availability
Not on sale yet. Purchase and download are not available.
Questions about Redline

Send me anything you want to know about its features.

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