An ATF file is a so-called Adobe Transfer Function file, ie a settings file for the transfer function of the image processing software Photoshop. In the German version this file is called a print characteristic. An ATF file stores information that is used for adjustments and corrections of possible image changes when transferring images to eg different print materials such as film.
When using different printing presses, printing materials or printing inks can lead to a dot gain. This can lead to a difference between the original image and the print.
The print characteristic is used to add or subtract pixels or dots depending on the setting. To create an ATF file yourself, select 'Output' in the 'Print' dialog of Photoshop and then the 'Print characteristic' button. Once you have made the desired setting, you can save it in an ATF file via 'save'. In this dialog also ATF files can be loaded.
It should be noted that when transferring multiple images for each image you have to create an ATF file separately.
Most often resolving problems with opening ATF files is very simple. Just install an appropriate program that supports such files. All of the listed programs support ATF files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of ATF files or offer file conversion options, but may not be capable of editing such files.
It is possible that although a compatible program has been installed on user’s system, it is not used by the system to open it. This may happen because no default application was associated with this type of files. To associate ATF files with given application, select "Open with" from drop-down menu (accessed by right-clicking on the file). Then select from the list the program or application you want to be used to open this type of file. If the GenePix Pro Software applications is not on the list, select "Browse" option in order to manually locate the directory where GenePix Pro Software has been installed.
Sometimes problems with opening ATF files may not lie with the application itself, but can arise due to other causes, such as: