Created attachment 127965 [details] 8 bit PAM file SUMMARY https://en.wikipedia.org/wiki/Netpbm PBM,PGM and PPM are currently supported. PAM supports alpha channel.
Setting to wish.
I believe Krita supports P*M files through QImageIOPlugin and from this website: https://doc.qt.io/archives/qt-5.13/qimagereader.html#supportedImageFormats it seems like it doesn't support PAM yet.