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Tell me about hairlines

 

Reproduction of Hairlines

Problems always occur in DTP applications when hairlines have to be reproduced: Since hairlines are defined as the "narrowest" possible lines, these lines appear weighty and are clearly visible when output on a simple 300-dpi laser printer whereas the same line output on film using a high-resolution imagesetter is so thin that it cannot be seen with the naked eye.

Jobstream makes it possible to define various procedures for handling hairlines by means of its hairline check.

 

In the upper section, you select the procedure which is to be used for hairlines and in the input field in the lower section you define the line width below which a line is to be considered to be a hairline. The unit can be set to pt or mm. Values that may already have been entered will be converted when another unit is selected.

If you enter a value higher than 0.5 pt, a warning message is displayed in order to avoid errors caused by mistyping.

You can select whether

  • not to check the line width (function disabled),
  • to have a warning displayed if the line is narrower than the specified line width (the job is printed nevertheless),
  • to have all lines with a width less than the specified value to be automatically increased in width to the minimum value,
  • or top have the print job canceled if the line width is below the specified value.

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