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Software

Batch Drawing Engine

AutoCAD batch automation for whole DWG drawing sets, powered by the CaPro Engine. Run the same commands on every drawing in a project in one pass instead of opening sheets one by one.

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What the Batch Drawing Engine does

Process an entire CAD drawing set in a single run. Run your own scripts to replace title blocks, update layers, colors, linetypes and fonts, and rename files across every sheet. The CaPro Engine processes drawings in the background, so you can keep working: no screen redraws, no window rendering.

  • CaPro Engine supports 573 commands
  • Unlimited sheets per run, from a single drawing to large projects
  • Every drawing gets the commands from your scripts in one coordinated pass: title blocks, layers, text and standards
  • Standard formats, correct layers and proper annotation, dropped into your existing project for review

Running scripts across large drawing collections

Prepare your project first: organize scripts and projects, open your script files (.SCR, .SCP and .SCE) and edit them, and copy projects. These steps work without AutoCAD installed or running.

To process drawings, generate scripts with Create Script and run scripts on your drawings with Run and Large Batch. Requires a licensed copy of AutoCAD 2018 or later for Windows, or AutoCAD Electrical 2018 or later, installed on the same PC (not included).

Where your drawings are processed

Execution runs in a compatible CAD execution environment. Requires a licensed copy of AutoCAD 2018 or later for Windows, or AutoCAD Electrical 2018 or later, installed on the same PC (not included). If no compatible installation is found, the app shows a notice at startup and turns off the run features. CAD Automation Pro does not include any Autodesk software.

General AutoCAD features and AutoCAD Electrical features

You do not need AutoCAD Electrical to use the Batch Drawing Engine.

  • With AutoCAD 2018 or later for Windows: batch processing of DWG drawing sets: run your own scripts to update title blocks, layers, colors, linetypes, fonts, text and standards, and rename files.
  • Also needs AutoCAD Electrical 2018 or later: scripts that use AutoCAD Electrical-specific commands (for example .SCE scripts and ace_/wd_ commands), wire numbering, component tagging and BOM updates, and the PLC Rack Designer.

Who it is for

The Batch Drawing Engine is built for CAD designers, drafters and CAD managers who work on whole AutoCAD projects, and for any team that makes the same change across many sheets. With AutoCAD Electrical, you also get extras such as the PLC Rack Designer. The goal is less repetitive drafting, higher productivity, and the potential to lower labor cost per drawing.

Typical applications

  • Running your own scripts to replace or update title blocks across a drawing set
  • Running your own scripts to bring layers, colors, linetypes, fonts and text in line with your standards
  • Renaming drawing files
  • Run your own scripts to purge unused items and reset drawing settings on every sheet
  • With AutoCAD Electrical: run your own scripts to handle wire numbering, component tagging and BOM updates

Tested performance

In our test, 70,731 drawings were processed in 1 hour 42 minutes (about 11.5 per second) using a drawing cleanup script that runs 53 commands on every drawing, over 3.7 million commands in total, on a 32-thread workstation with AutoCAD 2027. Speed varies with hardware, drawings and script.

How the test was run

  • Drawings: 70,731 DWG files in one batch job
  • Script: a drawing cleanup script with 53 commands per drawing (the full script is shown on the home page)
  • Computer: one 32-thread workstation
  • CAD software: AutoCAD 2027
  • Software: CAD Automation Pro, October 2026 release
  • Result: 1 hour 42 minutes in total, about 11.5 drawings per second on average

This is an observed result from our internal testing, not a guarantee. Your results will vary with hardware, drawing size and complexity, and the scripts you run.

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Autodesk, AutoCAD and DWG are registered trademarks or trademarks of Autodesk, Inc. Cad Automation Pro, LLC is an independent company and is not affiliated with, endorsed by, or sponsored by Autodesk.