Lemke Software GmbH Forum

Problem turning off dithering / anti-aliasing when importing PDF as B&W...

I am processing PDF files of mailing labels (CanadaPost) which have a crucial bar code, and are destined for a Zebra label printer.

To get clean bars, I have been importing in GC 6.7.9, at 203 ppi (resolution of the label printer), 1 bit (B&W), with dithering turned off; the imported image is essentially perfect and prints perfectly.
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I now need to use a more recent version (that works with OSX 10.14 Mojave).

Trying GC 9.7.6 and 10.7.4, with what I believe are the same import settings results in ragged barcode lines. (ie. including when anti-aliasing is unchecked)
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Is there a way to achieve the same result as was obtained with GC 6?
(I'm using AppleScript if that's of any help)

Thanks for input/suggestions!
James

Hi,

please use the latest version 11.
And check as library dynaPDF.

Please email the pdf to support@lemkesoft.de if you still have the problem.

Best wishes
Thorsten

Thanks for the suggestion; similar problem with 11.5.2, will send sample file.
. .
James

Thanks for the sample file.

The issue is fixed in the latest BETA 5247:

http://www.lemkesoft.org/beta.html

Thorsten

Yes, fixed. Thanks for the quick service!

However the resulting image is not B&W... started a new topic for this.

James

GraphicConverter uses Apple Quartz in the backend. This supports only 8 bit or more.

But GraphicConverter automatically reduce an 8 bit grayscale file (which uses only black & white) upon saving as TIF, PNG and some other formats to 1 bit.