# ScaleInk: Annotate PDF Plans

> Markup & Measure Drawings

Canonical page: [https://chrome-stats.com/d/id6806526421](https://chrome-stats.com/d/id6806526421)

## Overview

- **ID:** `id6806526421`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** akihiro kawata
- **Category:** Productivity
- **Version:** 1.4.1
- **Last updated:** 2026-11-07
- **First published:** 2026-09-20
- **Size:** 9.93 MB
- **Data as of:** 2026-11-12
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/scaleink-annotate-pdf-plans/id6806526421)
- **Privacy policy:** [https://scaleink.app/privacy](https://scaleink.app/privacy)

## Description

Compare multi-page drawing revisions more easily. Match pages between old and new PDFs and add them as reference layers in one batch. Check additions in red and deletions in blue on each page, then add handwritten notes and export your marked-up drawings.

ScaleInk brings PDF drawing review, annotation, and measurement together on iPad.

From architectural design and construction drawing reviews to redlining during meetings and on-site checks, simply open a PDF and start working with Apple Pencil.

Key Features
• Drawing revision comparison: additions in red, removals in blue
• Select areas to exclude from comparison
• Export PDFs with comparison results
• Freehand drawing, highlighting, and erasing on PDFs
• Text and shape annotations
• Drawing scale calibration and measurement
• Ruler tools for drawing and checking
• Layers for organizing design studies and markups
• Overlay another PDF as a reference layer
• Organize multiple PDFs using Projects and Stacks

Mark up drawings as you would on paper, measure using a calibrated scale, and organize design studies with layers. Review changes, add annotations, and export PDFs for sharing, all on iPad.

Designed for architecture, construction management, interior design, engineering, and other professionals who work with PDF drawings.

With the Lifetime plan, you can continue using ScaleInk Pro features provided on-device. Monthly and Annual plans include Pro features and may also include continuously provided services, such as cloud integration, in the future.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Rankings

- #1,725,256 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6806526421)