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Converting SGI to APNG

SGI (Silicon Graphics Image) is a raster image format associated with Silicon Graphics workstations. It is a bitmap file that can store black-and-white, gray-scale and color images, and may also contain color maps and alpha channels. SGI files are sometimes referred to as RGBs and can either use no image compression or RLE compression. Alternative extensions for the SGI format are BW, RGB and RGBA.

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.

So, how to change SGI into APNG?

The quick and simple way to handle your files is to get a quality piece of software, such as reaConverter. Although it is fast, this software is extremely efficient in managing a wide range of conversions. As you will soon realize, reaConverter will help you avoid spending countless hours trying to figure out how to convert SGIs. But at the same time, it will allow you to apply a wide range of editing options.

Download and Install reaConverter

reaConverter is quick to download, install and launch, and you don't need to be an IT specialist in order to understand in a few minutes how it operates.

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Install reaConverter

Load SGI Files

Start reaConverter and load all the .sgi files you intend to convert into .apng because, as opposed to most free online converters, reaConverter supports batch conversion. So you can save the time and energy you would lose with doing repetitive operations.

Select SGIs from a folder or by drag-and-dropping them directly into the reaConverter window.

Choose Output Folder

Go to the Saving options tab and decide where you want to save new .apng files. You can also spend a few more moments to apply additional editing to the images prepared for conversion.

Select APNG as Output Format

Then pick the APNG as output format. To help you do this, a series of buttons is conveniently placed at the bottom of the reaConverter window, so you can simply press on the one you need or click Plus button to add new options.

Then simply press the Start button and your conversion will begin in no time!

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Video tutorial

Command-line interface

Advanced users can convert SGI to APNG via command-line interface in manual or automated mode. You are welcome to contact our technical support when you have any questions about reaConverter.

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Highly efficient batch SGI to APNG converter that makes it easy to handle huge number of files and folders in a few simple operations.

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