Convert SPU to CGM

SPU to CGM conversion that keeps your files private. reaConverter runs offline on your computer with full batch processing support.

Got a folder full of SPU files? reaConverter batch converts them to CGM in minutes, not hours. Local processing means instant results, even with thousands of files.

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SPU to CGM
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How to Convert Multiple SPU Files to CGM?

1. Download and Install reaConverter

reaConverter is a standalone Windows app — download, install, and start converting SPU files in under two minutes.

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Install reaConverter

2. Load your SPU files

Add your SPU files to reaConverter. Whether it's a handful or an entire archive, the batch engine processes them efficiently.

Browse for files, drag them in, or add entire folders at once. reaConverter queues everything automatically.

Load your SPU files into reaConverter

3. Select CGM as output format

Pick CGM as the output format. Set the destination folder and optionally configure resolution, quality, or file naming.

Select CGM as output format

4. Start SPU to CGM conversion

Start the conversion with one click. reaConverter handles everything and notifies you when it's done.

Start Conversion

When the batch finishes, your CGM files are ready in the destination folder you chose earlier.

SPU to CGM Converter

reaConverter offers the fastest, simplest solution for converting your SPU 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 SPU 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 19, 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
"An efficient all-in-one solution for image conversion and light editing, designed for maximum user-friendliness."
Elena Anderson
Elena Anderson
Happy User
"Enable shell integration for lightning-fast file conversions directly from Windows Explorer."
R. Lewis
R. Lewis
Happy User
"After 200+ conversions on my budget laptop (i3-1115G4/4GB RAM/Win11), reaConverter outperforms heavyweight tools. Zero crashes, low CPU usage during batch processing, and no internet dependency - exactly what professionals need."
Walter Morgan
Walter Morgan
Satisfied Customer
"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

SPU to CGM Conversion: FAQ

What are SPU files?

An SPU file contains an image created or edited using an image processor created for Atari computers. The program was called Spectrum and could support images storing up to 512 colors. The Atari brand was one of the first ones to gain an important share of the home users market, but its computers have now been discontinued for over 2 decades, so SPU files are uncommon 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 SPU to CGM?

Yes! reaConverter instantly converts .spu 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 SPU to CGM online?

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

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

The best way to change SPUs 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 SPU to CGM.

How can I automate SPU 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 SPU 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 spu to cgm converter for batch processing.

What else can I do with reaConverter?

Convert GIS filesConvert PDFAdd watermark on photoCopy IPTC dataConvert vector images

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