User Guide

Glossary
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DPI (dots per inch)
Measurement of an image’s display resolution. For example, 92 DPI means 92 dots horizontally
and 92 dots vertically, which equals 8,464 dots per square inch. More dots per inch result in
higher resolution and image quality.
dynamic range
The dynamic range of an image is directly related to the dynamic range of your digital camera's
sensor. If your digital camera's sensor has a large dynamic range it can capture the darkest
shadows and brightest highlights at the same time, without clipping the shadows or highlights.
(RAW images preserve the dynamic range of your digital camera's sensor.) Adjusting the tonal
range of the image changes how the dynamic range of the image is represented on a monitor
or in a photo.
E
editor, image
See image editor.
Edit Mode
Open images in Edit Mode to adjust or enhance them using the editing tools and effects.
elevation
Height of an imaginary light source over an image. The elevation of the light source works in
conjunction with azimuth to generate a three-dimensional emboss effect.
encode
Writing (or saving) a file format.
encryption
Method of converting data into a secure format. You need a digital password or key to read an
encrypted file.
EXIF (Exchangeable Image File)
Standard for storing information, primarily with images that use JPEG compression. Most digital
cameras create EXIF information and embed it in the image file. For example, EXIF information
can include details about shutter speed and whether a flash was used.
export
Moving data from one application to another. The exporting application places the data in a
format that the other application understands.
exposure
Exposure is the amount of time that your digital camera's sensor is exposed to light.
F
feather
Softening image edges to blend them into the background.
file listing
In ACDSee, a report of the files currently displayed in the Browser.