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 Layer Attributes dialog (see chapter 4.11). 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: