Convert RGB to CGM

Convert RGB to CGM without quality loss. reaConverter gives you full control over resolution, compression, and output settings.

Tired of converting RGB files one at a time? reaConverter processes entire folders to CGM automatically. Handles large batches reliably without crashes or timeouts.

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How to Convert Multiple RGB Files to CGM?

1. Download and Install reaConverter

First, grab reaConverter from the download button below. Installation is fast, and the software runs offline — no account or signup needed.

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Install reaConverter

2. Load your RGB files

Launch reaConverter and drop in your RGB files. The software queues everything for batch processing with consistent settings.

Add files by dragging them in, browsing folders, or using the right-click menu from Windows Explorer.

Load your RGB files into reaConverter

3. Select CGM as output format

Pick CGM as output format and choose the destination folder where you want to save new .cgm files.

Select CGM as output format

4. Start RGB to CGM conversion

Then simply press the Convert button and your conversion will begin in no time!

Start Conversion

Once the conversion is complete, you can find your CGM files in the destination folder you selected.

RGB to CGM Converter

reaConverter offers the fastest, simplest solution for converting your RGB files into CGM in seconds - all files processed on your PC for maximum privacy and speed.

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Do more with your files

Converting RGB files for use in a workflow? reaConverter offers many ways to process files, so you can customize them according to your requirements.

Our range of editing options includes auto-processing options such as auto-rotate, auto-crop, watermarking and more. Change Color Space, copy Metadata, set DPI, manage ICC Profile, control Bit Depth.

Conversion features
Image editing

User Reviews

Average User Rating:
Last updated on January 16, 2026
"We faced a massive challenge: digitizing 20 years of CGM archives into PNG format. Initial estimates projected months of work, but reaConverter's powerful batch processing and resolution scaling let us complete the project in weeks. Most impressively, it handled even our pre-1994 vector files flawlessly—zero errors, perfect fidelity."
David McCullough
David McCullough
Satisfied Customer
"Converting CGM files to SVG for our digital manuals used to be a nightmare until we found reaConverter. It preserves precise scaling and metadata flawlessly, making our workflow 3x faster with zero quality loss."
Charles Long
Charles Long
Aerospace Documentation Specialist
"The step-by-step video makes conversion foolproof. I'd recommend this to my grandma - it's that well-explained!"
DeShawn M. Thompson
DeShawn M. Thompson
Happy User
"I'm really impressed with this software - it converts files between formats incredibly fast!"
Lin Zhang
Lin Zhang
Happy User
"I firmly believe working with JPEG — the universal format supported by all devices and apps—is the wisest choice. reaConverter handles these conversions flawlessly."
Ava Thomas
Ava Thomas
Happy User
"Creating marketing materials for various platforms requires multiple file versions from single sources. reaConverter's workflow automation lets us generate PNG, JPEG, and SVG variants from AI and PSD files simultaneously. The color profile management ensures brand consistency across all outputs, and the processing speed allows for last-minute changes without delaying deadlines."
Rebecca Turner
Rebecca Turner
Marketing Agency CEO

RGB to CGM Conversion: FAQ

What are RGB files?

The RGB extension is associated with colour or black-and-white bitmap images released under the SGI (Silicon Graphics Image) format. Similar extensions include RGBA and BW. All were initially designed in the mid-1990s for use on Silicon Graphics workstations and are currently considered rare and obsolete.

What are CGM files?

CGM (Computer Graphics Metafile) is a format that contains vector graphics information (clip art, drawings) associated with graphics design or CAD programs. As opposed to other types of metafiles, such as EMF or WMF, CGM files are not only supported by Windows, but can be used on different platforms too. They are encoded using binary, character-based of clear-text encoding.

Can reaConverter convert RGB to CGM?

Yes! reaConverter instantly converts .rgb to .cgm with perfect quality preservation. With its batch processing feature, you can convert multiple files at once in just a few clicks. You can even convert images directly from Windows Explorer using the right-click menu — fast and convenient.

Can I convert RGB to CGM online?

If you only need to convert a few RGB files to CGM format, feel free to try our free online free online RGB to CGM converter — perfect for small batches with no installation needed!

How can I turn RGB files into CGM on my computer?

The best way to change RGBs to CGMs on your PC is to install a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from RGB to CGM.

How can I automate RGB to CGM files conversion?

reaConverter supports all the most useful automation features such as right-click сonversion and Watch Folders for the most efficient automated files conversion in any software of this type.

Is there a way to convert RGB files to CGM using the command prompt?

reaConverter provides full access to all its features via Windows command line, including a high-performance command-line rgb to cgm converter for batch processing.

What else can I do with reaConverter?

Convert CAD formatsSet picture bit depthConvert PDFWatermark imageChange format settings

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