Introduction
 
 Enable the [Line thickening] setting to increase the width of very thin lines to improve readability. When disabled, the original drawing line thickness is applied.
 
Procedure
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Open the [Preferences] - [Print job defaults] tab. 
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Click on [Edit] in the [PostScript - General] section, or click on the [Line thickening] setting. 
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Select the correct value. 
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Click [Ok] to confirm, or [Cancel] to reject your entries.