Convert ST4 to PSD

ST4 to PSD made simple. Add files or folders, pick your settings, click Convert. reaConverter handles the rest — even thousands of files.

Online converters too slow for your ST4 files? reaConverter works locally and handles unlimited batches. All processing runs locally on your PC, so your files stay private and secure.

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How to Convert Multiple ST4 Files to PSD?

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 ST4 files

Open reaConverter and add your ST4 files. You can load individual files, entire folders, or even nested subfolders.

Drop your ST4 files into the window or use File menu to browse and select folders.

Load your ST4 files into reaConverter

3. Select PSD as output format

Choose PSD as the target format. Pick a destination folder or let reaConverter save files alongside the originals.

Select PSD as output format

4. Start ST4 to PSD conversion

Hit Convert and let reaConverter do the work. The progress window shows status for each file in real time.

Start Conversion

After conversion, find your PSD files in the output folder. Click 'Show converted files' to open it directly.

ST4 to PSD Converter

reaConverter offers the fastest, simplest solution for converting your ST4 files into PSD in seconds - all files processed on your PC for maximum privacy and speed.

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Do more with your files

Converting ST4 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
"An incredibly efficient tool for batch converting PSD to JPG — saves massive amounts of time and effort!"
Jason W.
Jason W.
Satisfied Customer
"Handling 50+ PSDs daily, reaConverter's batch processing cuts my export time by 80%. The perfect balance of speed and quality preservation."
Sarah Thompson
Sarah Thompson
Satisfied Customer
"Clients kept asking to ‘just peek’ at my layered PSDs. Now I convert them to locked PDFs with reaConverter before sending. No more ‘accidental’ edits from ‘helpful’ clients!"
Nina R.
Nina R.
Graphic Designer
"They should build a monument for whoever created this software! Everything is so intuitive and effortless. The time savings are incredible — I converted stacks of PSD files to JPG in minutes. Absolutely brilliant!"
Karen M. Lewis
Karen M. Lewis
Satisfied Customer
"We deployed reaConverter across our department to standardize file formats for our archives. The command-line support and automation features integrated perfectly into our systems. Stellar performance and zero crashes—it just works."
David R.
David R.
IT Solutions Architect
"So simple! I just needed to convert a couple of files to another format, and for such a straightforward task, the online converter worked perfectly — delivering the files I needed in no time. Excellent service!"
Kenneth D. Carter
Kenneth D. Carter
Satisfied Customer

ST4 to PSD Conversion: FAQ

What are ST4 files?

An ST4 file represents a RAW image taken with an SBIG CCD camera. SBIG is a producer of astronomical instruments and ST4s most likely contain images related to some type of scientific or industrial application. They are considered rare and are probably difficult to open using regular image viewers.

What are PSD files?

PSD is the default format for handling images using Adobe Photoshop and it represents a layered image file. PSDs allow later editing of available layers, including transparency, masks, alpha channels and texts, among others. After applying all desired editing, PSD files can be saved in Photoshop under more easily recognizable formats, such as JPEG or PNG, which are also smaller in size but flatten the image and hence do not allow later editing of layers.

Can reaConverter convert ST4 to PSD?

Yes! reaConverter instantly converts .st4 to .psd 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 ST4 to PSD online?

If you only need to convert a few ST4 files to PSD format, feel free to try our free online free online ST4 to PSD converter — perfect for small batches with no installation needed!

How can I turn ST4 files into PSD on my computer?

The best way to change ST4s to PSDs 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 ST4 to PSD.

How can I automate ST4 to PSD 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 ST4 files to PSD using the command prompt?

reaConverter provides full access to all its features via Windows command line, including a high-performance command-line st4 to psd converter for batch processing.

What else can I do with reaConverter?

Convert RAW photosSet manual file dateConvert DICOM filesResize imagesConvert PDF files

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