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Xerox iGen4 Job Preparation Guide for Designers - Keiger Graphic ...

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Image Compression<br />

• It is recommended that you use JPEG compression only when necessary as<br />

the last step when exporting to PDF as it may cause unpredictable results.<br />

• If upsampling is required, although this is not recommended, use bicubic.<br />

• Images higher than 450 dpi should be downsampled using<br />

bicubic sampling.<br />

Figure 3-25 Example of no compression, 300 dpi<br />

photo credit: Michael Riebesehl<br />

78 Digital Printing Reference

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