Convert ST4 to PDF

Convert ST4 documents to PDF efficiently. reaConverter handles bulk conversion with control over pages, resolution, and output format.

Need to convert ST4 to PDF? reaConverter handles batch conversion with ease, processing hundreds of files at once while preserving quality. Your files never leave your machine. No third-party servers, no privacy concerns. PDF conversion includes control over pages, resolution, and output format.

Download
reaConverter
Convert
ST4 to PDF
Online
Convert

How to Convert Multiple ST4 Files to PDF?

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.

reaConverter logo
Install reaConverter

2. Load your ST4 files

Launch reaConverter and load the ST4 files you want to convert. Add a few files or thousands, batch processing handles them all.

Drag-and-drop ST4s directly into reaConverter or use the folder browser to load entire directories.

Load your ST4 files into reaConverter

3. Select PDF as output format

Select PDF as target format and pick where to save results. You can keep default settings or fine-tune the output.

Select PDF as output format

4. Start ST4 to PDF conversion

Press Convert to begin processing. You can watch the progress or minimize and let it run in the background.

Start Conversion

Your converted PDF files will appear in the destination folder as soon as processing completes.

ST4 to PDF Converter

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

Download Free Trial

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 25, 2026
"Our legal team processes hundreds of documents daily. reaConverter automates everything — PDF conversion, documents, image compression, you name it. It’s reliable, fast, and a huge time-saver."
Att. David K. Brooks
Att. David K. Brooks
Legal Consultant
"I've been searching for reliable software like this forever — finally found one that works smoothly without lag. After installing, I converted PDFs to JPEGs with perfect quality retention. Exactly what I needed!"
Richard Jones
Richard Jones
Digital Marketing Manager
"Convert PDFs instantly via right-click context menu — no need to open extra apps!"
Jessica M.
Jessica M.
Satisfied Customer
"I’ve tried dozens of converters, but reaConverter stands out. The OCR feature for scanned PDFs works flawlessly, and the software never crashes."
Emily K.
Emily K.
Satisfied Customer
"This converter actually keeps your PDF->JPEG files crisp! No more quality loss or frustrating lag. Why did I waste time with other tools?!"
Peter Cox
Peter Cox
Satisfied Customer
"PDF is certainly a universal format, but sometimes you need JPEG files instead. For conversion, I use reaConverter — a lightning-fast program. No online editor can match its speed. Install it once, and you're set. Just open, convert, and done!"
Nathan Ward
Nathan Ward
Satisfied Customer

ST4 to PDF 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 PDF files?

PDF (Portable Document Format) is one of the most popular formats used for storing document files which include both text and graphics. As opposed to other formats with a similar function, PDFs can be easily transferred between different applications and different operating systems, and generally don't have a very large size. Moreover, they can offer decent image quality in a compressed format and can be secured with passwords or watermarks.

Can reaConverter convert ST4 to PDF?

Yes! reaConverter instantly converts .st4 to .pdf 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 PDF online?

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

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

The best way to change ST4s to PDFs 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 PDF.

How can I automate ST4 to PDF 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 PDF using the command prompt?

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

What else can I do with reaConverter?

Change format settingsChange DPISet manual file dateConvert vector filesChange color space

Find out more

Get advanced software for file conversion, processing, and editing, giving you complete, precise control over your work.
Download
reaConverter
Buy Now
reaConverter software