Thanks to graphics context, when we draw with Quartz, all device-specific characteristics are contained within the specific type of graphics context we use. All objects in Quartz are drawn to, or contained by, a graphics context. The information inside a graphics context includes graphics drawing parameters and a device-specific representation of the paint on the page. cgContextĪ graphics context is an opaque data type ( CGContext) that encapsulates all the information Quartz uses to draw images to an output device, such as a PDF file, a bitmap, or a window on a display. To remove a filter, click Filters in the toolbar of the ColorSync Utility window, click the filter you want to remove, then click the Remove button. To edit the filter, click the lock again. When you add a filter, you can prevent it from being edited accidentally by clicking the lock. The filter can be used in apps, PDF workflows, or the Print dialog.Īdd Comments: Choose this item to enter a comment about the filter.
Choose a default profile for files without a color profile.Īdd Image Effects Component: Choose an item from this submenu to change the size, bit depth, interpolation, and compression settings for the images in your file.Īdd PDF Retouch Component: Choose an item from this submenu to set how monochrome data is encoded, whether images are interpolated, and whether to create PDF/X-3 documents.Īdd Domain Information: Choose this item to specify where the filter can be used.
In the ColorSync Utility app on your Mac, click Filters in the toolbar of the ColorSync Utility window.Ĭlick the Add button in the lower-left corner of the window, enter a name for the filter, then press the Return key.Ĭlick the Edit pop-up menu to the right of the filter’s name, then choose an option:Īdd Color Management Component: Choose an item from this submenu to add color modifications to your filter.
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