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Posted to dev@pdfbox.apache.org by "Antonio Pozo (Jira)" <ji...@apache.org> on 2025/08/08 14:37:00 UTC
[jira] [Comment Edited] (PDFBOX-6050) Japanese text not rendered when converting editable PDFs to images
[ https://issues.apache.org/jira/browse/PDFBOX-6050?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18012876#comment-18012876 ]
Antonio Pozo edited comment on PDFBOX-6050 at 8/8/25 2:36 PM:
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Hi [~tilman] I just attached the file [^fw8ben_filled (1).pdf]
^The library versión is 3.0.5.^
^Thanks!!!^
was (Author: JIRAUSER310674):
I just attached the file [^fw8ben_filled (1).pdf]
^The library versión is 3.0.5^
> Japanese text not rendered when converting editable PDFs to images
> ------------------------------------------------------------------
>
> Key: PDFBOX-6050
> URL: https://issues.apache.org/jira/browse/PDFBOX-6050
> Project: PDFBox
> Issue Type: Bug
> Reporter: Antonio Pozo
> Priority: Major
> Attachments: fw8ben_filled (1).pdf
>
>
> We are using the PDFBox library to convert PDF documents to images. We have found that, for many _editable_ PDFs containing Japanese text (PDF forms), the generated images do not display the Japanese characters (it seems PDFBox is unable to extract/render them). Text in other languages within the same document is rendered correctly.
> This issue does *not* occur with non-editable PDFs — in those cases, Japanese text is rendered without problems.
> We have observed that if we open these editable PDFs in a PDF editor and simply save them again (without making any changes), PDFBox is then able to generate the images with the Japanese text rendered correctly. We have also tried setting a [font that supports the Japanese alphabe|https://fonts.google.com/noto/specimen/Noto+Sans+JP]t in the library before converting the PDF to an image, without success.
> Other tools (such as Adobe Reader) are able to display and extract the Japanese text from these editable PDFs without requiring the open-and-save step.
> *Expected behavior:*
> When converting editable PDFs containing Japanese text to images, the Japanese characters should be rendered correctly without requiring the document to be re-saved.
> *Actual behavior:*
> When converting editable PDFs containing Japanese text to images, the Japanese characters are missing in the generated images, while text in other languages is rendered correctly.
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