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HVD Internal mode

This page applies to Harlequin v13.1r0 and later; and to Harlequin Core but not Harlequin MultiRIP.

To turn on HVD Internal mode in HHR, the following PostScript language fragment may be included in a TestConfig, Page feature or other configuration:

<< /EnableOptimizedPDFScan /Always

   /OptimizedPDFScanLimitPercent 25

   /OptimizedPDFCacheID (GGIRR)

>> setpdfparams

where /OptimizedPDFScanLimitPercent indicates the percentage of the job that you wish to scan before deciding whether to continue with HVD.

From HMR v10.1 the HVD internal mode optimization can be activated by a checkbox on the Page Setup > PDF Options dialog, which is the equivalent of using the above PostScript language fragment in a page feature.

Adding the PostScript language fragment so that it is used all the time, would potentially invoke a performance penalty. This is because the scan, which is looking for shared raster elements, takes some computational effort, and so should only be turned on in a workflow where such shared raster elements are known to occur, or are at least likely.

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