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https://issues.apache.org/jira/browse/PDFBOX-4189?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16454743#comment-16454743
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Tilman Hausherr commented on PDFBOX-4189:
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[~msahyoun] sounds interesting. But what is when the string belongs to two
languages? What about punctuation?
I realize there's another thing we may have overlooked: getting the width of a
string. That one doesn't use the new code so it wouldn't return the correct
width.
[~paawak] thanks, I'll look at it tomorrow. I am thinking not about Bengali
(where GSUB is a "must", if I understand it correctly) but about ligatures in
latin scripts where it is a "nice feature" that some may appreciate and some
won't. I opened the Arial font in DTL OTMaster and it has ligatures at GID
4231, so I assume it supports substitution.
> Enable PDF creation with Indian languages, by reading and utilizing the GSUB
> table
> ----------------------------------------------------------------------------------
>
> Key: PDFBOX-4189
> URL: https://issues.apache.org/jira/browse/PDFBOX-4189
> Project: PDFBox
> Issue Type: New Feature
> Components: FontBox, PDModel
> Reporter: Palash Ray
> Priority: Major
> Attachments: Bengali-text-after.pdf, Bengali-text-before.pdf,
> BengaliPdfGenerationHelloWorld.java, bengali-example.pdf,
> bengali-example2.pdf, committed.patch, screenshot.png
>
> Original Estimate: 336h
> Remaining Estimate: 336h
>
> Implemented proper rendering of Indian languages, which need extensive Glyph
> substitution. The GSUB table has been read and used effectively to replace
> some compound words with their respective Glyphs. All tests are passing. I
> have tested this for the Bengali font. Please review these changes and let me
> know if it makes sense to incorporate these.
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