It seems the only way how to convert PSDX files to PNG, would be to use Adobe Photoshop / Adobe Photoshop Touch and use the default export / save as.. function to convert PSDX to PNG. No other program except the Adobe ones can probably perform this conversion.
Convert Adobe Photoshop Touch graphics to Portable Network Graphic.
We found 2 software records in the database related to .psdx to .png file format conversion.
Microsoft Windows software - convert psdx to png on Windows
One of the best bitmap graphic editing program
Convert from psdx file format
|Yes, Adobe Photoshop supports png file conversion as a target file type.||Yes||Yes||png editor||Yes||Yes||Yes||No|
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned psdx to png. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
Apple macOS / Mac OS X software - convert psdx to png on OS X
Mac version of popular digital image editor