PDF to HTML5 conversion – Text and fonts (Part 2)

When substituting fonts, there is one important questions we need to solve…

What happens if we do not recognise the font?

There are 3 alternatives we have for handling fonts we do not have setup for substitution:-

a. Ignore the fact and use the font name. (HTMLFontMapper.IGNORE)

b. Use a default. (HTMLFontMapper.DEFAULT_ON_UNMAPPED)

c. Fail (forcing the user to fix the issue by setting up a mapping (HTMLFontMapper.FAIL_ON_UNMAPPED)

It is set by a single call when we setup HTML extraction

HTMLDisplay.setValue(HTMLDisplay.FontMode,
                 HTMLFontMapper.DEFAULT_ON_UNMAPPED);

If you look at the code you will also see THREE currently unused options (EMBED_UNKNOWN_AS_IMAGE, EMBED_UNKNOWN_WITH_FONT, EMBED_ALL) which might whet your appetite for some possible future enhancements…

Click here to see all the articles in the PDF to HTML5 conversion series.

This post is part of our “Fonts Articles Index” in these articles we explore Fonts.

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Mark Stephens

System Architect and Lead Developer at IDRSolutions
Mark Stephens has been working with Java and PDF since 1999 and has diversified into HTML5, SVG and JavaFX. He also enjoys speaking at conferences and has been a Speaker at user groups, Business of Software, Seybold and JavaOne conferences. He has a very dry sense of humor and an MA in Medieval History for which he has not yet found a practical use.
Markee174

About Mark Stephens

Mark Stephens has been working with Java and PDF since 1999 and has diversified into HTML5, SVG and JavaFX.

He also enjoys speaking at conferences and has been a Speaker at user groups, Business of Software, Seybold and JavaOne conferences. He has a very dry sense of humor and an MA in Medieval History for which he has not yet found a practical use.

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