User Guide

Scanning and processing file information
ACDSee scans image files to determine the file type of each image. Usually, an
image’s file type is identified by its file name extension — for example, .jpg or .gif.
However, it is possible for a file to have an extension that is different from its actu-
al file type.
ACDSee also determines an image’s dimensions and color depth and displays this
information in the Details view mode of the File list.
To select a file information scanning option:
1. Click Tools | Options.
2. In the Options dialog box, click Display.
3. On the Display page, click the Scan headers of image files in the
current folder drop-down arrow and select one of the Scan Headers
options.
4. Click OK.
You can stop the file scanning process temporarily by pressing Esc or
double-clicking the progress meter in the status bar. Press Pause or
double-click the progress meter to continue again.
Scan Headers options
Never This option never scans the headers of image files. It
assumes all files with an appropriate extension — for
example, .bmp, or .jpg — are images files.
This is the fastest option as files are not opened for
examination. However, some features, such as the
highlighting of image files and sorting on image
dimensions, may not work as effectively.
Always This option always scans the headers of image files. It
examines non-standard file name extensions and
retrieves image properties for all image files.
This option is slower, especially when reading from
slow-access removable media such as floppy,
CD-ROM, and network drives.
Only on fixed This option scans the headers of image files on local
disks hard disk drives only.
Only on non- floppy This option does not scan the headers of image files
and non-CDROM on A, B,or CD-ROM drives.
disks
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