Convert SD1 to IGS

Convert SD1 to IGS without quality loss. reaConverter gives you full control over resolution, compression, and output settings.

Looking to change SD1 files to IGS format? reaConverter makes it simple — add your files, select output format, and convert entire folders in one click. Runs entirely on your hardware for maximum speed — no waiting for uploads or server queues.

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How to Convert Multiple SD1 Files to IGS?

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 SD1 files

Start reaConverter and add your .sd1 files. The software processes everything locally, so your files never leave your computer.

Use drag-and-drop, folder browser, or right-click conversion from Explorer.

Load your SD1 files into reaConverter

3. Select IGS as output format

Select IGS from 700+ supported output formats. Choose your destination folder and adjust settings to match your needs.

Select IGS as output format

4. Start SD1 to IGS conversion

Click Convert to start the batch. reaConverter processes files quickly and shows you the status of each one.

Start Conversion

Once done, reaConverter shows a summary. Click 'Show converted files' to jump straight to your IGS output.

SD1 to IGS Converter

reaConverter offers the fastest, simplest solution for converting your SD1 files into IGS in seconds - all files processed on your PC for maximum privacy and speed.

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Do more with your files

Converting SD1 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.

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Image editing

User Reviews

Average User Rating:
Last updated on January 25, 2026
"An excellent program! I use it regularly in my work - it supports nearly every file format imaginable. The interface is intuitive and runs flawlessly every time."
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Roger Cook
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"For agencies handling confidential data, reaConverter eliminates cloud-upload risks while delivering unmatched conversion reliability. Our team uses it both in-office and remotely with identical results."
Jamal Bailey
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"Our volunteer team uses reaConverter to prepare images for fundraising campaigns. The learning curve was minimal, and the results are professional-grade. The customer support team even helped us customize a workflow — fantastic service!"
Jason P. Bailey
Jason P. Bailey
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"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
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"I'm really impressed with this software - it converts files between formats incredibly fast!"
Lin Zhang
Lin Zhang
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"I firmly believe working with JPEG — the universal format supported by all devices and apps—is the wisest choice. reaConverter handles these conversions flawlessly."
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SD1 to IGS Conversion: FAQ

What are SD1 files?

The SD1 extension is attached to RAW images captured using some models of Sigma cameras. Sigma is a Japanese brand producing various types of photographic devices and cameras. The brand is best known for its lenses that can be used on cameras manufactured by several other companies, including Nikon, Canon and Panasonic. SD1 is part of a group of extensions attached to images shot in RAW mode on Sigma devices, including SD0 and SD2. All are considered rare and probably difficult to open using regular image viewers.

What are IGS files?

The IGS (Initial Graphics Exchange Specification) file format is a standardized CAD data exchange format used to transfer 2D and 3D model data between different CAD systems. Developed in the 1980s, IGES ensures compatibility across various engineering and design software by storing geometric data, annotations, and structure in a neutral ASCII or binary format.

Can reaConverter convert SD1 to IGS?

Yes! reaConverter instantly converts .sd1 to .igs 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 SD1 to IGS online?

If you only need to convert a few SD1 files to IGS format, feel free to try our free online free online SD1 to IGS converter — perfect for small batches with no installation needed!

How can I turn SD1 files into IGS on my computer?

The best way to change SD1s to IGSs 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 SD1 to IGS.

How can I automate SD1 to IGS 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 SD1 files to IGS using the command prompt?

reaConverter provides full access to all its features via Windows command line, including a high-performance command-line sd1 to igs converter for batch processing.

What else can I do with reaConverter?

Set file dateConvert CAD formatsSet picture bit depthConvert GIS filesConvert RAW formats

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