We have found 2 software records in our database eligible for .png to .pspimage file format conversion.
Considering .pspimage files are made and saved in several programs from Corel, and it is likely only these programs can be used for creating of these files. You should be able to use other graphics files (including .png graphics) as resource for .pspimage files.
Updated: September 12, 2016
A set of tools for graphics designers. With CorelDraw Graphics Suite designers can create vector illustrations, page layout, brouchures, web sites, retouch photos, convert bitmap images and vector images. CorelDraw Graphics Suite is available only for Microsoft Windows.