Creating Trapping Zones Using Acrobat - I-Trap
Contents
1. Creating Trapping Zones Using Acrobat In the release of I Trap trap zones must be created using various existing tools for generating trap zones in different desktop page layout and viewing applications For the purpose of this example we will use the zone trapping tool for Acrobat Please see the www trapping org links page for information on obtaining this tool Lucid kindly acknowledges Agfa Corporation s copyright of this tool and shows it only for informational purposes The Figure 1 shows the main windows of the zone trapping plug in for Acrobat in the foreground along with a document showing three trap areas one of which is highlighted 15 x 2s Adobe Acrobat Zone LucidTrapTest pdf n ans File Edit Document Tools View Window Help x Agfa In RIP Trapping Basic Details Images V Advanced Control Palette Basic Trapping Options JV Trap Zone Convert v1 0 Trap Zones Y Bookmarks v Global Trapping Trap idth Global Trapping Preferences Q i VV Normal Traps 2700 Points Black trap scale factor 100 vl Thumbnails v Zonal Trapping Zonal Trapping Preferences Separation Settings Ink Settings Global Trapping Preferences xj Basic Details Images Preferences Factory Defaults Current trap set None Y Comments N A Global Traps On Save Load Signatures D2. efault Basic Trapping Options Trap Width Normal Traps 0 250 Points Black trap scale factor 100 Current trap set Factory Defaults Reset Save Load Cancel o 70 K KI Figure 1 The basic use of the tool is to enable the preference options in the left panel and dismiss them Click or draw trap zones with the trap zone creation tools Next using the zone settings floating palette set the parameters of the zones Once the zones are created the job is ready to be printed to the rip Trap zones may be of any shape and in any location The only constraint is that any given pixel of a job may belong to only one trap zone This means that overlapping trap zones will be resolved in the overlap area by the top most trap zone The Figure 2 shows an area of a document that contains two overlapping trap zones The underlying trap zone is curved around the bluish colored arrow and the top most trap zone is selected and 2 curves around the reddish colored arrow The two zones overlap as shown In the area of the overlap the top most zone selected here will determine the trap settings fe Adobe Acrobat Zone LucidTrapTest pdf l a o x Te File Edit Document Tools View Window Help l BASS Aa E 4 gt Pi ebs AFOAE S fi jAgla In RIP Trapping gt ae a A ie 1 Basic Details Images Basic Trapping Options j Trap Zone Trap width Mormal T
3. oversized pages to paper size Expand small pages to paper size JV Auto rotate and center pages Preview Units Inches Zoom 100 0 The other settings such as printer copies and options should be set as needed Now you can go back to the I Trap user manual Chapter Working with Areas section and do your own experiments with the TrapTest pdf file supplied in the installation
4. raps 0 250 H Points Black trap scale factor 100 Preferences Factory Defaults Current trap set Factory Defaults A Global Traps On a EN an M Err A Default Save Load Figure 2 The trap zone floating palette can be used to set parameters for various trap zone objects Important When processing PDF jobs with trap zones Lucid strongly recommends printing PS directly from Acrobat rather than ripping the PDF file This may change with future updates but the key issue is that Trap zones are stored as comments in the job and printing PS from Acrobat provides the Lucid I Trap tools with a better access to these comments The Figure 3 shows a print dialog with the cursor positioned on the comments option to include the trap zones Language Level 3 should also be selected 2a Adobe Acrobat Zone LucidTrapTest pdf bn File Edit Document Tools View Window Help Printer Name HD_Trendsetter_6 1 X Status Ready AdobePS HD_Trendsetter_6 1 z F TrendSetter ps C Selected pages araphic Pages from ft to fi Print Even and Odd Pages IM Comments PostScript Options Print Method Language Level 3 IV Optimize for Speed I Download Asian Fonts D Save Printer Memory Color Managed On printer Printing Tips Advanced Figure 3 z 18 x 18 x Properties Reverse pages Print as image I Print to file Copies and Adjustments Number of copies fi M Collate I Shrink
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