Convert STX to DDS

STX to DDS converter that respects your privacy. No cloud uploads, no file size limits — just fast offline batch processing.

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

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STX to DDS
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How to Convert Multiple STX Files to DDS?

1. Download and Install reaConverter

reaConverter installs quickly on any Windows PC. No dependencies, no bloatware — just a clean setup that's ready to use immediately.

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Install reaConverter

2. Load your STX files

Add your STX 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 STX files into reaConverter

3. Select DDS as output format

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

Select DDS as output format

4. Start STX to DDS conversion

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

Start Conversion

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

STX to DDS Converter

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

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Do more with your files

Converting STX 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 13, 2026
"5/5⭐ Finally! Does what it promises - converts AND tweaks images without complicated menus. Perfect for quick jobs."
J. Mitchell
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"reaConverter is pure gold! Rock-solid performance with zero crashes. No internet needed—perfect for travel or low-connectivity work. The ultimate offline alternative to sketchy web converters. Plus, the desktop version keeps sensitive files secure since nothing ever gets uploaded to the cloud."
Malik T. Martin
Malik T. Martin
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"I was skeptical at first, but reaConverter exceeded my expectations. The interface is intuitive, and the advanced settings let me tweak outputs perfectly. Plus, the customer support is fantastic!"
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"Converts files in seconds! Finally a tool that's both fast and simple to use."
Wei Chen
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"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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STX to DDS Conversion: FAQ

What are STX files?

STX files represent RAW images created with SBIG CCD cameras. They are part of a group of formats known as Santa Barbara Instruments Astronomical Images, also including ST5, ST6, ST7 and ST8. Apart from astronomy, SBIG cameras can also be used in medical imaging, color photometry and a few other scientific and industrial sectors. All formats in the group are considered specialized and rare, so opening STX files might be possible only after conversion to more widely available extensions.

What are DDS files?

DDS (DirectDraw Surface) is an image file format that usually contains texture data, cubic environment maps or other type of data compressed using the S3TC (S3 Texture Compression) algorithm. The DDS format was first associated with Microsoft's DirectX 7.0 and later on with DirectDraw, a tool for accelerating the rendering of graphics in various applications. DDS is a container file and can be decompressed using a graphics processing unit (GPU).

Can reaConverter convert STX to DDS?

Yes! reaConverter instantly converts .stx to .dds 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 STX to DDS online?

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

How can I turn STX files into DDS on my computer?

The best way to change STXs to DDSs 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 STX to DDS.

How can I automate STX to DDS 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 STX files to DDS using the command prompt?

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

What else can I do with reaConverter?

Copy EXIF dataConvert Gerber imagesCrop imagesConvert RAW filesConvert PDF

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