Arbortext IsoDraw > Data Exchange Reference > Introduction > A Few Basic Terms... > Format Preferences
  
Format Preferences
Generally speaking, a file format should not be described by its name alone, since the format definition supports different variants. It is not simply adequate, for example, to want to generate a TIFF file. You need to define the color depth or resolution you want to use for saving the file. A number of variants are possible depending on the format.
You will discover that the quality of the import and export filters supported by the various programs differ greatly from each other. As a result, using a filter of lower quality can result in errors that can have a considerable impact on exchanging files. In many cases, differences between the programs can be compensated. For example, if a program can only import pure 2D DXF files, you will need to ensure that only 2D data are sent to the program.
Arbortext IsoDraw allows you to perform settings for each format in order to be able to master the situations described. The settings for the individual formats differ from each other.
There are separate settings for import and export.
There are two ways of performing these settings:
Use the Edit menu command, Preferences to set import and export preferences for each format. (See the Preferences for Import and Preferences for Export sections in the various format chapters.)
Change preferences every time a file is imported or exported.
When importing most formats, a dialog box will appear where you can perform the required settings. (These settings are described in the Import section of each format chapter.) When exporting, the dialog box will appear if you click Options. (These settings are described in the Export section of each format chapter.)
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If no dialog box containing setting options appears when importing a file, there may be two reasons for this. Either there are no special settings for this format or display of the dialog box has been disabled. (See the Preferences for Import section in format chapter for the format you want to import.)
Changes you perform in one of these dialog boxes will be applied automatically to the preferences.