Generally speaking, various bitmap images (including .bmp and .pct files) can be converted between each other or even to another format either with a graphical editor (via save function) with with a dedicated image conversion utility. Some of the suitable programs are listed below.
Convert Standard Windows bitmap image to Apple Macintosh QuickDraw/PICT bitmap graphics format.
We have found 4 software records in our database eligible for .bmp to .pct file format conversion.
Microsoft Windows software - convert bmp to pct on Windows
A graphics design tool for making 3D landscaping and animations
Convert from bmp file format
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 bmp to pct. 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.
A photo and graphics editor from Ability productivity suites
A powerful vector graphics editor from Adobe
Apple macOS / Mac OS X software - convert bmp to pct on OS X
3D modeling and animation package for Mac.