Lemke Software GmbH Forum

I rechecked and found an issue in the Mac App Store version.

Simple email a screenshot from the Mac App Store app from the tab purchased items which shows GraphicConverter 12 to support@lemkesoft.de
I will issue a license for the version outside the Mac App Store which fixes the issue.

The issue ...

Just check the dialog from the menu GraphicConverter 12 > About GraphicConverter 12…
It shows Mac App Store or your name.

Thanks for the sample files.

The JPEGs have three channels. But all channels contain have the exact same content. So, the image was converted to grayscale in your other app during processing.
So, that can’t be undone.

You can only use the colorize command inside GraphicConverter. But that will not ...

Do you use the version from our website or the Mac App Store version?

Please email some sample file to support@lemkesoft.de

Can you update your macOS to the current macOS Tahoe?

Yes, simple make a backup first with the menu GraphicConverter 12 > Backup…

You find it at the bottom of our download page:

https://www.lemkesoft.de/en/products/gr ... r/download

Please forward sample files zipped to support@lemkesoft.de

The .acorn file format is proprietary and not publicly documented. Because of this, GraphicConverter can only display the embedded preview via the Acorn preview service. This is shown in the information window, too.

So, only the low resolution preview can be converted.