Convert STI to APNG

Batch convert STI RAW files to APNG in one click. reaConverter handles entire photo libraries with consistent settings.

Manual STI to APNG conversion wastes hours. reaConverter automates the process — just add files and click Convert. Everything happens offline on your computer — no uploads, no cloud risks. Preserves RAW quality with options for color space and compression settings.

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STIAPNG

How to Convert Multiple STI Images to APNG?

1. Download and Install reaConverter

Install reaConverter for fast STI conversion. Quick setup, then you're ready to process entire photo shoots. Built-in editing tools let you resize, crop, or watermark as you convert.

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Install reaConverter

2. Load your STI files

Launch reaConverter and drop in your STI files. The software queues everything for batch processing with consistent settings.

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

Load your STI files into reaConverter

3. Select APNG as output format

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

Select APNG as output format

4. Start STI to APNG 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 APNG files in the output folder. Click 'Show converted files' to open it directly.

STI to APNG Converter

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

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Do more with your images

Converting STI images for use in a larger project? With reaConverter, you can convert, edit, and enhance your images in one streamlined process.

Our range of editing options includes such image processing actions as Resize, Rotate, Crop, Color Replace, Watermarks and more. Adjust actions include RGB, HLS, HSV, Brightness and Contrast. Auto-processing options are also available, such as auto-rotate and auto-crop.

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User Reviews

Average User Rating:
Last updated on January 25, 2026
"Creating marketing materials for various platforms requires multiple file versions from single sources. reaConverter's workflow automation lets us generate PNG, JPEG, and SVG variants from AI and PSD files simultaneously. The color profile management ensures brand consistency across all outputs, and the processing speed allows for last-minute changes without delaying deadlines."
Rebecca Turner
Rebecca Turner
Marketing Agency CEO
"I was drowning in mismatched file formats until I found reaConverter. The one-click conversion and editing tools simplified everything, and the pricing is reasonable for small businesses. Now I spend less time troubleshooting and more time growing my brand!"
Emily K.
Emily K.
E-commerce Entrepreneur
"This program is incredibly simple and user-friendly, even beginners can use it with ease. It supports batch processing, works offline, and runs smoothly on my aging Acer Aspire laptop. Best of all, the output quality is outstanding!"
Kevin Harris
Kevin Harris
Happy User
"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
Satisfied Customer

STI to APNG Conversion: FAQ

What are STI files?

STI is a format associated with shooting in RAW mode with Sinar cameras, and has a similar function to the CS1 format. Well-known among photography aficionados, the Sinar brand was founded in the 1940s in Switzerland and has ever since produced several models of large and medium sized cameras. Most of these cameras are conceived as integrated systems and include parts that can be changed between different models. Shooting STI images with a Sinar camera results in creating RAW images that can be processed with a specialized editing software so as to create high quality images, which are more suitable for print than other compressed formats, such as JPEG.

What are APNG files?

The APNG format is also known as "animated PNG" and is made up of a series of PNG files of the same size that are connected as an animation. APNG files are similar in function with GIFs, but they support better quality images and transparency.

Can reaConverter convert STI to APNG?

Yes! reaConverter instantly converts .sti to .apng 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.

What is reaConverter used for?

reaConverter is a software program used for converting images and other types of files from one format to another. It supports a wide range of file formats and allows users to convert multiple files at once, making it a valuable tool for graphic designers, photographers, and other professionals who work with digital images. reaConverter also includes features for resizing, cropping, and editing images, along with batch processing capabilities that help automate repetitive tasks.

Can I convert STI to APNG online?

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

How can I turn STI files into APNG on my computer?

The best way to change STIs to APNGs 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 STI to APNG.

How can I automate STI to APNG 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 STI files to APNG using the command prompt?

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

What else can I do with reaConverter?

Convert PDF filesWatermark photosConvert Gerber filesCrop photoConvert vector files

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