Convert SD1 to DGN

Bulk SD1 to DGN conversion with consistent results. Set it up once, process thousands of files with the same quality every time.

reaConverter transforms SD1 files to DGN quickly and reliably. Drag in folders, set your options, click Convert, done. No cloud accounts, no file uploads, no complicated setup. Just install and start converting.

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SD1 to DGN
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How to Convert Multiple SD1 Files to DGN?

1. Download and Install reaConverter

Download reaConverter and install it in seconds. The setup is straightforward — no complex configuration, no extra software required.

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Install reaConverter

2. Load your SD1 files

Load your SD1 files into reaConverter. You can add individual files or point to folders, and the software will queue everything automatically.

Select SD1s from a folder or drag-and-drop them directly into the reaConverter window.

Load your SD1 files into reaConverter

3. Select DGN as output format

Choose DGN for output and set your save location. reaConverter lets you customize quality and apply edits before conversion.

Select DGN as output format

4. Start SD1 to DGN conversion

Press the Convert button and reaConverter takes care of the rest. Processing time depends on file size and volume.

Start Conversion

After processing, find all your new .dgn files in the output location. The log shows details for each conversion.

SD1 to DGN Converter

reaConverter offers the fastest, simplest solution for converting your SD1 files into DGN 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.

Conversion features
Image editing

User Reviews

Average User Rating:
Last updated on January 14, 2026
"Your solution was buried deeper in search results than it should be. After struggling with unclear alternatives, I found your guides — finally, instructions that made sense for a first-time user like me. Excellent work!"
Richard E. Miller
Richard E. Miller
Satisfied Customer
"Converts files in seconds! Finally a tool that's both fast and simple to use."
Wei Chen
Wei Chen
Happy User
"I'd been searching for reliable conversion software forever — reaConverter has everything I need! After installing and watching the tutorial, I had my files converted to the perfect format in minutes. Flawless experience!"
Sanjay Mehta
Sanjay Mehta
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"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."
Roger Cook
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
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!"
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Jason P. Bailey
Non-Profit Coordinator

SD1 to DGN 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 DGN files?

DGN stands for "design" and represents an extension typically used for CAD (Computer Aided Design) files created with Bentley Systems' MicroStation or with IGDS (Intergraph's Interactive Graphics Design System) — two popular programs used by architects, engineers, constructors and designers. DGN files can include sizeable building projects with a rich amount of details, usually have a very large size and can be viewed with a limited number of CAD programs.

Can reaConverter convert SD1 to DGN?

Yes! reaConverter instantly converts .sd1 to .dgn 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 DGN online?

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

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

The best way to change SD1s to DGNs 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 DGN.

How can I automate SD1 to DGN 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 DGN using the command prompt?

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

What else can I do with reaConverter?

Convert Gerber filesCrop imagesChange file creation dateConvert GIS filesConvert RAW files

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