Pixia is a freeware graphics editor. This article covers its native layered raster graphics format, usually called PXA. The English edition of Pixia appears to name the format Phierha (which is supposedly the name of an advanced version of Pixia).
Some or all PXA files contain an extra copy of the image, in JPEG format.
PXA files apparently begin with the ASCII signature "
- XnView (May display only the JPEG preview of the image, not the full-quality original.)