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What is Redline?

Bentley Systems’ Redline is a program meant for redlining and viewing technical drawings in a collaborative system. So-called because markups or corrections (in red ink) are used to check the technical data on such a field, redlining is used by project managers or reviewers to annotate or revise changes on a technical drawing; this is now especially useful in the age where computer-aided design (CAD) has taken over most of the work of draftsmen and architects. Though Redline can markup revisions on a drawing without the need to print out an annotated form, it also has print to scale capabilities and multi-function viewing.

Redline can work with DGN and DWG files, especially for AutoCAD-created data, with full support for Visual Basic so users can customize its commands and the program itself to suit their needs. Bentley Systems have, however pulled the plug on the development of Redline, with its features melded into the Bentley Navigator, which is part of the ProjectWise development suite. This extends the reach of what was once Redline so project collaborators and contributors can share data on a single platform.

Download directly from the developerDownload Redline (external link)

File types supported by Redline

Our users primarily use Redline to open these file types:

By Prof. Jones (The File Expert)

Chief Content Editor and File Expert

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