Operation Manual

• Image Quality slider: Choose how much to compress your files by dragging the slider.
Setting the slider to 12 applies the least compression and results in a higher-quality
image; setting the slider to 0 (zero) applies the most compression and results in a
lower-quality image.
• Size To pop-up menu: Export your images at their original size, or specify image
dimensions or a percentage of the image’s original size.
• DPI: Specify dots per inch (dpi), the resolution at which the images will be reproduced.
• Gamma Adjust slider: Gamma describes how your image distributes brightness. Drag
the slider to apply a uniform gamma adjustment to your exported images.
• Color Profile pop-up menu: Choosing a color profile ensures consistent color reproduction
on other systems and in the printed image. Aperture provides a large selection of
profiles, and any custom profiles you’ve saved during calibration are also included in
the pop-up menu. To apply a ColorSync profile to the images you’ve selected for export,
choose a profile from the pop-up menu.
• Black Point Compensation checkbox: Select this checkbox to scale the black and white
luminance values to the selected ColorSync profile. Activating black point compensation
can prevent shadows from appearing as solid black.
• Show Watermark checkbox: To add a watermark to your images, select this checkbox.
After selecting the checkbox, you can choose a file to apply as a watermark image and
place your watermark with a specified opacity on your image.
For more information about adding watermarks, see Adding a Watermark at Export.
Creating an Export Preset
If none of the predefined export presets suits your needs, you can create your own export
preset. An easy way to create a new export preset is to copy an existing preset and then
modify the copy.
To create a new export preset
1 Choose Aperture > Presets > Image Export.
665Chapter 20 Exporting Your Images