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https://issues.apache.org/jira/browse/PDFBOX-4774?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ben Manes updated PDFBOX-4774:
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Attachment: fixed_page.jpg
> Add AWS Lambda support to FontFileFinder
> ----------------------------------------
>
> Key: PDFBOX-4774
> URL: https://issues.apache.org/jira/browse/PDFBOX-4774
> Project: PDFBox
> Issue Type: Improvement
> Reporter: Ben Manes
> Priority: Major
> Attachments: fixed_page.jpg, original.pdf, rendered_page.jpg
>
>
> The font directory finder is hard coded based on the operating system and is
> not directly extensible. Instead, if I understand correctly, the fonts have
> to be explicitly declared in a {{PDFBox_External_Fonts.properties}} file.
> AWS Lambda includes only minimal fonts in its linux distribution. For some
> documents this is too limiting, so on our EC2 instances we install
> {{msttcorefonts}}, {{ttf-aenigma}}, and {{fonts-tuffy}}. These go into
> {{/usr/share/fonts}} which the {{UnixFontDirFinder}} inspects.
> AWS Lambda will unzip the distribution into {{/var/task}}, will unzip layers
> into {{/opt}} only allows tasks to otherwise write to {{/tmp}}. The common
> recommendation for fonts is to include them in the lambda, reference them at
> {{/var/task/fonts}}, and set {{FONTCONFIG_PATH}} to that path for headless
> tasks like Chrome's print-to-pdf.
> Since PdfBox does not use font-config this solution does not work. Ideally it
> would be nice if one could specify a custom {{FontDirFinder}} or add custom
> directories (such as by a system property if not API). Alternatively, PdfBox
> could include reasonable default locations if the environmental variable
> {{LAMBDA_TASK_ROOT}} is set.
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