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Adobe Creative Suite 5 Printing Guide 70
As mentioned earlier, Photoshop PDF is the best format for images
containing vector content: the file can be reopened for editing in
Photoshop without rasterizing the vector content, and the PDF
“wrapper” ensures that page layout programs and other applications
will render the vector content as crisp, vector edges without pixelation.
Photoshop PDF
To preserve vector content, start with the High Quality Print preset. Turn o Optimize for Fast
Web Preview, and turn o compression and downsampling. e goal is to preserve all the
original Photoshop data, but encase it in a PDF wrapper for proper rendering by other
applications.
For these types of files, instruct your customers to start with the High
Quality Print PDF preset, and then modify it a bit in the interest of
image integrity.
•For General options, select Preserve Photoshop Editing Capabilities so
the le can be reopened in Photoshop. is option does increase le
size, but is required to maintain all layers and to allow future editing of
vector and text content.
•Deselect Optimize for Fast Web Preview. While this doesn’t impair
content delity or editability, it’s unnecessary in a print workow.
•For Compression options, choose Do Not Downsample, and set
Compression to None or use ZIP compression, to avoid any loss of
data.
•Leave the Output and Security options at the default seings.
Because the saved file has a .pdf file extension, double-clicking the file
to open it launches Adobe Acrobat, not Photoshop. Using the InDesign
Edit Original function also opens the file in Acrobat. To edit such files in
Photoshop instead, launch Photoshop and then choose File > Open to
open the file. After editing the file in Photoshop, you then must
manually update links to such files in InDesign or Illustrator.
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If you are printing to an inkjet printer or other RGB-based device, you
will likely achieve the best results by printing from an RGB image.
Despite the fact that these devices use inks named cyan, magenta,
yellow and black (often with additional colors such as orange, green,
light cyan, light magenta, etc.), they are set up to maximize the wider
gamut available in RGB images by converting incoming RGB
information to appropriate values for the color gamut of the printing
device. The colorants in inkjet inks actually allow a wider range of
colors than offset inks: Printing from an image in the smaller CMYK
color space limits the output. For detailed guidance, consult the user
guide and online resources available from the manufacturer of the
device.
Note that if you are creating an image destined to be placed in InDesign
or Illustrator, it is best to place the image in the final documents, create
a PDF using the settings that will be used for the job, and print from
Acrobat Pro.
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