andrews05

Hm, I understand your issue but this seems like an incredibly niche feature which I would say falls out of scope of what oxipng should be providing. Can you explain...

Yeah, I hear the frustration but you should be able to script something yourself outside of oxipng. E.g. you could start by constructing a list of all your png files...

Just to comment further here: If we did want to proceed with a feature like this it would require extensive consideration about all the different ways and reasons people might...

> [edit] Keeping track of a file queue is a feature you might expect from a GUI program such as [FileOptimizer](https://nikkhokkho.sourceforge.io/static.php?page=FileOptimizer). Have you tried using this instead? If you like...

@indianakernick It's actually possible to access `PngData` and other internals currently, by importing them from a hidden module: `use oxipng::internal_tests::PngData` Note that this is obviously not part of the public...

Hi @Yay295 Oxipng will not strip anything by default - this will only happen if you are using the `--strip` flag. If you don't want the EXIF tags to be...

EXIF is an interesting situation. It's only recently been adopted into the PNG spec (third edition, still not a final standard yet) and as you pointed out is not widely...

I think we would want more data on this before we can make a call on it. How and why EXIF is being used in pngs, what tags etc. Your...

Of interest: https://richg42.blogspot.com/2022/01/lagrangian-rdo-png.html

I don't understand exactly how it works myself, but yes it is lossy. RDO stands for [Rate Distortion Optimisation](https://en.wikipedia.org/wiki/Rate–distortion_optimization).