*.kra¶
.kra
is Krita’s internal file-format, which means that it is the file format that saves all of the features Krita can handle. It’s construction is vaguely based on the open document standard, which means that you can rename your .kra
file to a .zip
file and open it up to look at the insides. In Krita’s settings dialog you can enable compression; with compression enabled the files will be smaller, but saving will take longer.
Other applications mostly cannot open .kra
files, and you cannot upload .kra
as images on websites like twitter or deviantArt.
A .kra
file contains a file names mergedimage.png
which contains the rendered image as you see it on your canvas. Some applications, like Scribus, can use the mergedimage.png
file to open .kra
files. This file is always in the RGBA color model, or grayscale for files that are originally grayscale.
The .krz
file format is a .kra
file without mergedimage.png
and with compression always enabled. You can use this format if you want to save disk space and do not care about interchange with those applications that load the mergedimage.png
file.