Am 08.12.2017 um 01:28 schrieb Matthew Self:
Hello,I have a newbie question about kerning in PDFs. When rendering text from a PDF, is kerning info from the font used to adjust the positions of the rendered characters automatically?
No
Or do apps that write PDF files need to read the kerning data and individually adjust the positions of the characters when writing the PDF?
Yes
If the latter, I see PDPageContentStream.showText() for creating a Tj operator, but I don't see a method like showTextWithSpacing() for creating a TJ operator (which is what I presume you would need to do).
Indeed, but it is coming in the next version: showTextWithPositioning(). You can test a snapshot version.
https://repository.apache.org/content/groups/snapshots/org/apache/pdfbox/pdfbox-app/2.0.9-SNAPSHOT/ Issue: https://issues.apache.org/jira/browse/PDFBOX-3992 Tilman
Is that something I could add, or is there a reason it hasn't been added already? Thank you.
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