Fast markups, clean takeoffs, and export-ready reviews.

Drawbridge is a native macOS PDF markup and takeoff app built for architects, designers, and engineers, with cloud markups, text annotations, highlights, freehand drawing, callouts, measurements, and fast save and export workflows.

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Apple Silicon Mac (M1+) • macOS 13.0+

Drawbridge.app — PDF Markup & Takeoff

Focused tools for reviewing PDFs without the usual drag.

Built for speed, clarity, and seamless team collaboration.

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Mark up fast

Add text annotations, highlights, freehand drawing, callouts, and measurements without leaving the document.

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Native app

Built natively for macOS, not a sluggish browser wrapper. Designed for maximum responsiveness.

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Shareable reviews

Cloud markups and export-ready save workflows so your team and consultants stay perfectly aligned.

Open a PDF. Mark it up. Keep moving.

Three simple steps to streamline your drawing review process.

Open Drawbridge

Launch the app on an Apple Silicon Mac running macOS 13 or newer.

Open an existing PDF or create a new one

Start from the drawing set, detail sheet, or review file you already have.

Add markups

Use text, highlights, freehand drawing, callouts, and measurements to get comments out quickly.