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https://issues.apache.org/jira/browse/PDFBOX-3550?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15629834#comment-15629834
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John Hewson edited comment on PDFBOX-3550 at 11/2/16 6:04 PM:
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Actually there are not so many solutions; far from it. The only decent open
source text shaping engine I'm aware of is Harfbuzz. The openhtmltopdf project
you link to uses the [ICU shaping
engine|http://userguide.icu-project.org/layoutengine], which is deprecated due
to lack of features and many bugs.
I do agree that we shouldn't be doing any wheel reinvention - one pragmatic
option would be to use AWT's built-in text shaping (i.e.
[GlyphVector|https://docs.oracle.com/javase/7/docs/api/java/awt/font/GlyphVector.html])
(but to continue to use PDFBox's native font classes for all non-shaping
responsibilities, so it won't affect rendering). Better yet, the built-in
shaper [will be Harfbuzz from JDK 9
onwards|https://bugs.openjdk.java.net/browse/JDK-8064530].
[~lehmi], [~msahyoun], [~tilman], should we consider exploring the AWT option
further? It looks promising.
was (Author: jahewson):
Actually there are not so many solutions; far from it. The only decent open
source text shaping engine I'm aware of is Harfbuzz. The openhtmltopdf project
you link to uses the [ICU shaping
engine|http://userguide.icu-project.org/layoutengine], which is deprecated due
to lack of features and many bugs.
I do agree that we shouldn't be doing any wheel reinvention - one pragmatic
option would be to use AWT's built-in text shaping (i.e.
[GlyphVector|https://docs.oracle.com/javase/7/docs/api/java/awt/font/GlyphVector.html])
(but to continue to use PDFBox's native font classes for all non-shaping
responsibilities, so it won't affect rendering). Better yet, the built-in
shaper [will be Harfbuzz from JDK 9
onwards|https://bugs.openjdk.java.net/browse/JDK-8064530].
[~lehmi], [~msahyoun], [~tilman], should we consider exploring the AWT option
further?
> OpenType Shaping
> ----------------
>
> Key: PDFBOX-3550
> URL: https://issues.apache.org/jira/browse/PDFBOX-3550
> Project: PDFBox
> Issue Type: New Feature
> Components: FontBox, PDModel
> Environment: All
> Reporter: Omid Pourhadi
> Labels: unicode
> Attachments: BYekan.ttf
>
>
> the problem is, in some languages letters need to be joined together for
> example, consider this word
> {color:red}
> سلام
> {color}
> but after creating a pdf it contorts to
> {color:red}
> سلام
> {color}
> with extra semi-spaces. I think this is a bug in pdfbox and definetly is not
> related to font.
> {code:title=SampleCode.java|borderStyle=solid}
> public class SampleCode
> {
> public static void main(String[] args) throws IOException
> {
>
> PDDocument document = new PDDocument();
> //this font perfectly works in iText and JasperReport with the same text
> PDFont titleFont = PDType0Font.load(document,
> SampleCode.class.getResourceAsStream("/BYekan.ttf"));
> PDPage page = new PDPage(PDRectangle.A4);
> document.addPage(page);
> PDPageContentStream contentStream = new PDPageContentStream(document,
> page);
> contentStream.beginText();
> contentStream.setFont(titleFont, 12);
> contentStream.newLineAtOffset(0, 100);
> contentStream.showText("سلام");
> contentStream.endText();
> contentStream.close();
>
>
> document.save(new File("/home/omidp/temp/htmltopdf/output.pdf"));
> document.close();
> }
> }
> {code}
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