Convert PNG to FIT

Understanding PNG and FIT file formats

PNG (Portable Network Graphics) is a popular raster image format known for its lossless compression and support for transparency. It is widely used for web graphics, digital artwork, and screenshots.

FIT (Flexible Image Transport System), often with the extension .fit or .fits, is a digital file format primarily used in astronomy. It is designed for storing, transmitting, and manipulating scientific and astronomical images, including metadata about the image and its acquisition.

Why convert PNG to FIT?

Converting a PNG image to a FIT file is essential when you need to use standard astronomical software or share images with scientific metadata. FIT files are compatible with tools used in astrophysics and space research, making them ideal for scientific analysis.

How to convert PNG to FIT

To convert a PNG image to a FIT file, you need specialized software that supports both formats. The best and most widely used tool for this purpose is FITS Liberator, a free application developed by ESA, ESO, and NASA for astronomical image processing.

Step-by-step conversion using FITS Liberator

1. Download and install FITS Liberator on your computer.
2. Open FITS Liberator.
3. Go to File → Open and select your PNG file.
4. Adjust the image settings as needed for your scientific requirements.
5. Click File → Save As and choose the FIT or FITS format.

Alternatively, you can use ImageMagick, a command-line tool, with the following command:

convert input.png output.fit

Make sure ImageMagick is installed and supports the FITS format.

Best software for PNG to FIT conversion

• FITS Liberator – Best for astronomical and scientific use, free and user-friendly.
• ImageMagick – Powerful command-line tool for batch conversions and automation.

Conclusion

Converting PNG to FIT is straightforward with the right tools. FITS Liberator is recommended for most users, while ImageMagick is ideal for advanced or automated workflows.