FontVerter

Java library for converting and manipulating various font formats, normalizing invalid fonts and extracting fonts from PDFs.

Currently supports

• Bare CFF** -> OpenType/OTF and WOFF 1.0 & 2.0

• OpenType/OTF/TTF -> WOFF 1.0 & 2.0

• WOFF 1.0 -> OpenType and WOFF 2.0

** Bare CFFs are found in PDF files and can be saved as .cff files. They can be used as an OTF's CFF table with extra conversion work.

With PdfFontExctractor utility

• Supports extracting PostScript Type0/Compsoite, Bare CFF and TTF fonts.
• PdfFontExtractor will normalize TTF fonts to make sure they are valid in all major web browsers.

Can only convert these types with PdfFontExtractor utility

• PostScript Type0/Composite -> OpenType/TTF and WOFF 1 & 2

Maven (Note WOFF2 requires optional jBrotli dependency shown below)

<dependencies>
	<dependency>
		<groupId>org.fontverter</groupId>
		<artifactId>FontVerter</artifactId>
		<version>1.2.16</version>
	</dependency>
</dependencies>

<repositories>
	<repository>
		<id>jcenter</id>
		<url>http://jcenter.bintray.com </url>
	</repository>
</repositories>

Optional jBrotli dependency for WOFF2 support. jBrotli is currently optional since it is not on Maven Central or JCenter yet.

<dependencies>
    <dependency>
        <groupId>org.meteogroup.jbrotli</groupId>
        <artifactId>jbrotli</artifactId>
        <version>0.5.0</version>
        <optional>true</optional>
    </dependency>
</dependencies>

<repositories>
    <repository>
        <id>bintray-nitram509-jbrotli</id>
        <name>bintray</name>
        <url>http://dl.bintray.com/nitram509/jbrotli</url>
    </repository>
</repositories>

Usage

Converting a font (in this case to OTF)

FVFont font = FontVerter.convertFont(inputFontFile, FontVerter.FontFormat.OTF);
FileUtils.writeByteArrayToFile(new File("MyFont.otf"), font.getData());

Reading a font file

File file = new File("FontVerter+SimpleTestFont.otf");
FVFont font = FontVerter.readFont(file);

Attempt to normalize and fix an invalid font

File file = new File("FontVerter+SimpleTestFont.otf");
FVFont font = FontVerter.readFont(file);

if (!font.isValid())
    font.normalize();

FileUtils.writeByteArrayToFile(new File("fixed-font.otf"), font.getData());

PDF Font Extractor command line

PdfFontExtractor <PDF file or directory containing PDF files>

Options:
-ff=<format> Font format to save the fonts as. <format> = WOFF1, WOFF2, OTF. Defaults to OTF.
-dir=<path> Directory to extract to. <path> = font extract directory. Defaults to {current dir}/fonts/

PDF font extractor programatically

File pdf = new File("test.pdf");
PdfFontExtractor extractor = new PdfFontExtractor();

// extract directly to a directory
extractor.extractFontsToDir(pdf, TestUtils.tempOutputPath);

// or extract to list of FVFonts for further manipulation
List<FVFont> fonts = extractor.extractToFVFonts(doc);