5. Working with PhotoLine / 5.5 Working With JPEG-Files

5.5.2 JPEG-Images In PhotoLine

In order to allow lossless editing PhotoLine adds to every loaded JPEG-image the corresponding compressed JPEG-data. So long as the image data of a layer aren’t modified, these compressed data stay there. Whether there are attached data can be checked in the Attributes-dialog (see chapter 4.8). If there is an entry "Add. Picture Data: JPEG Picture", the JPEG-data are there. If a loaded JPEG-image is saved, the same compressed JPEG-data will be written, that were loaded before.

Now one may ask what should be the advantage of being able to save a file the same way it has been loaded. Well, it doesn’t have to be the same. There are several operations that can be applied without loosing the JPEG-data. These operations are:

When working with JPEG-files you should know a few simple rules in order to always get the expected result: