File with PNG extension contains raster graphics compressed using lossless compression method called ‘deflate’ that supports ‘alfa’ channel and 48-bit color. PNG files can store transparent pixels and 16-bit color per each channel. Each PNG file contains a single image.
CPT is a file created by PHOTO-PAINT software tool. CPT files store bitmap images (just like BMP files). However, CPT file contains some additional image information, such as masks. Layers, transparency settings, embedded objects, etc. CPT files also store project history.
After converting the file to the new format, you will be able to use other programs to support it. Keep in mind, however, that the PNG file after converting to CPT may differ slightly from the original. The most important information should be kept, but if you want the file after conversion from PNG to CPT to be the same, you have to do this carefully and choose the proper application from the list below.
There is no guarantee, of course, that the conversion will come up to all your expectations, but it will certainly help you. If, after all, the effect of converting PNG to CPT does not meet your expectations, you can simply try to find on the Internet a different version of your file in PNG format, properly converted to a CPT file by someone else. If this fails, use the information provided in the further part of the website.
If after converting the file PNG the desired result was not achieved, you can try to change the format of PNG file to other than CPT. On our website you will find more information on the following conversion options
Unfortunately, if after performing the two previously described steps (trying to find your PNG file converted by someone else, and the attempt to convert it to CPT on your own) you still have a problem with your file, then there are only a few solutions left. You can once again try to find and install an application that can open the PNG file in its original format (without conversion to CPT file). Such a solution will be difficult to implement, but it certainly will give the best result.