if you are working with high-end photography, digital artwork for printing, or brand assets like logos that require absolute, mathematical perfection down to the pixel.
Check if it is 24-bit (true color) or 8-bit (indexed).
What are you currently using to export your PNGs? png to png better
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For your most critical assets—the ones that need to be absolutely as small as possible—you can perform one last, very slow, very thorough pass. if you are working with high-end photography, digital
Before we look at the how , we must understand the why . A standard conversion (e.g., PNG to JPG) loses data. A PNG-to-PNG conversion does not change the pixel count, but it can change three critical things:
Excellent all-in-one web compressors that give you manual control over the compression level. Desktop Software (Power Users) The progress bar hit 100%
Serving highly optimized images saves massive amounts of data transfer for high-traffic applications.
If your image is a simple logo, converting it to 8-bit using pngquant is the best "PNG to PNG" optimization you can perform. 4. Best Practices for Better PNGs
Here is everything you need to know about why a PNG-to-png conversion works and how to do it correctly. Why Convert PNG to PNG?
Interrupted downloads or bad saves can corrupt an image header. Re-converting the file forces the software to rewrite the code, fixing glitchy or unopenable images.