io.jar is a component in iText Java library to provide input/output functionalities. iText Java library allows you to generate and manage PDF documents.

The Source Code files are provided together with the JAR file in the binary packge like iText7-Core-7.1.4.zip. You can download it at iText 7 Core Download site.

You can compile it to generate your JAR file, using io.pom as the build configuration file.

The source code of io-7.1.4.jar is provided below:

⏎ com/itextpdf/io/font/FontNames.java

/*

    This file is part of the iText (R) project.
    Copyright (c) 1998-2018 iText Group NV
    Authors: Bruno Lowagie, Paulo Soares, et al.

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License version 3
    as published by the Free Software Foundation with the addition of the
    following permission added to Section 15 as permitted in Section 7(a):
    FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
    ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
    OF THIRD PARTY RIGHTS

    This program is distributed in the hope that it will be useful, but
    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
    or FITNESS FOR A PARTICULAR PURPOSE.
    See the GNU Affero General Public License for more details.
    You should have received a copy of the GNU Affero General Public License
    along with this program; if not, see http://www.gnu.org/licenses or write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA, 02110-1301 USA, or download the license from the following URL:
    http://itextpdf.com/terms-of-use/

    The interactive user interfaces in modified source and object code versions
    of this program must display Appropriate Legal Notices, as required under
    Section 5 of the GNU Affero General Public License.

    In accordance with Section 7(b) of the GNU Affero General Public License,
    a covered work must retain the producer line in every PDF that is created
    or manipulated using iText.

    You can be released from the requirements of the license by purchasing
    a commercial license. Buying such a license is mandatory as soon as you
    develop commercial activities involving the iText software without
    disclosing the source code of your own applications.
    These activities include: offering paid services to customers as an ASP,
    serving PDFs on the fly in a web application, shipping iText with a closed
    source product.

    For more information, please contact iText Software Corp. at this
    address: sales@itextpdf.com
 */
package com.itextpdf.io.font;

import com.itextpdf.io.font.constants.FontMacStyleFlags;
import com.itextpdf.io.font.constants.FontWeights;
import com.itextpdf.io.font.constants.FontStretches;

import java.io.Serializable;
import java.util.List;
import java.util.Map;

public class FontNames implements Serializable {

    private static final long serialVersionUID = 1005168842463622025L;

    protected Map<Integer, List<String[]>> allNames;

    // name, ID = 4
    private String[][] fullName;
    // name, ID = 1 or 16
    private String[][] familyName;
    // name, ID = 2 or 17
    private String[][] subfamily;
    //name, ID = 6
    private String fontName;
    // name, ID = 2
    private String style = "";
    // name, ID = 20
    private String cidFontName;
    // os/2.usWeightClass
    private int weight = FontWeights.NORMAL;
    // os/2.usWidthClass
    private String fontStretch = FontStretches.NORMAL;
    // head.macStyle
    private int macStyle;
    // os/2.fsType != 2
    private boolean allowEmbedding;

    /**
     * Extracts the names of the font in all the languages available.
     *
     * @param id the name id to retrieve in OpenType notation
     * @return not empty {@code String[][]} if any names exists, otherwise {@code null}.
     */
    public String[][] getNames(int id) {
        List<String[]> names = allNames.get(id);
        return names != null && names.size() > 0 ? listToArray(names) : null;
    }

    public String[][] getFullName() {
        return fullName;
    }

    public String getFontName() {
        return fontName;
    }

    public String getCidFontName() {
        return cidFontName;
    }

    public String[][] getFamilyName() {
        return familyName;
    }

    public String getStyle() {
        return style;
    }

    public String getSubfamily() {
        return subfamily != null ? subfamily[0][3] : "";
    }

    public int getFontWeight() {
        return weight;
    }

    /**
     * Sets font weight.
     * @param weight integer form 100 to 900. See {@link FontWeights}.
     */
    protected void setFontWeight(int weight) {
        this.weight = FontWeights.normalizeFontWeight(weight);
    }

    /**
     * Gets font stretch in css notation (font-stretch property).
     *
     * @return One of {@link FontStretches} values.
     */
    public String getFontStretch() {
        return fontStretch;
    }

    /**
     * Sets font stretch in css notation (font-stretch property).
     *
     * @param fontStretch {@link FontStretches}.
     */
    protected void setFontStretch(String fontStretch) {
        this.fontStretch = fontStretch;
    }

    public boolean allowEmbedding() {
        return allowEmbedding;
    }

    public boolean isBold() {
        return (macStyle & FontMacStyleFlags.BOLD) != 0;
    }

    public boolean isItalic() {
        return (macStyle & FontMacStyleFlags.ITALIC) != 0;
    }

    public boolean isUnderline() {
        return (macStyle & FontMacStyleFlags.UNDERLINE) != 0;
    }

    public boolean isOutline() {
        return (macStyle & FontMacStyleFlags.OUTLINE) != 0;
    }

    public boolean isShadow() {
        return (macStyle & FontMacStyleFlags.SHADOW) != 0;
    }

    public boolean isCondensed() {
        return (macStyle & FontMacStyleFlags.CONDENSED) != 0;
    }

    public boolean isExtended() {
        return (macStyle & FontMacStyleFlags.EXTENDED) != 0;
    }

    protected void setAllNames(Map<Integer, List<String[]>> allNames) {
        this.allNames = allNames;
    }

    protected void setFullName(String[][] fullName) {
        this.fullName = fullName;
    }

    protected void setFullName(String fullName) {
        this.fullName = new String[][]{new String[]{"", "", "", fullName}};
    }

    protected void setFontName(String psFontName) {
        this.fontName = psFontName;
    }

    protected void setCidFontName(String cidFontName) {
        this.cidFontName = cidFontName;
    }

    protected void setFamilyName(String[][] familyName) {
        this.familyName = familyName;
    }

    protected void setFamilyName(String familyName) {
        this.familyName = new String[][]{new String[]{"", "", "", familyName}};
    }

    protected void setStyle(String style) {
        this.style = style;
    }

    protected void setSubfamily(String subfamily) {
        this.subfamily = new String[][]{new String[]{"", "", "", subfamily}};
    }

    protected void setSubfamily(String[][] subfamily) {
        this.subfamily = subfamily;
    }

    /**
     * Sets Open Type head.macStyle.
     * <br/>
     * {@link FontMacStyleFlags}
     * @param macStyle
     */
    protected void setMacStyle(int macStyle) {
        this.macStyle = macStyle;
    }

    protected int getMacStyle() {
        return macStyle;
    }

    protected void setAllowEmbedding(boolean allowEmbedding) {
        this.allowEmbedding = allowEmbedding;
    }

    private String[][] listToArray(List<String[]> list) {
        String[][] array = new String[list.size()][];
        for (int i = 0; i < list.size(); i++) {
            array[i] = list.get(i);
        }
        return array;
    }

    @Override
    public String toString() {
        String name = getFontName();
        return name.length() > 0 ? name : super.toString();
    }
}

⏎ com/itextpdf/io/font/FontNames.java

Or download all of them as a single archive file:

File name: io-7.1.4-sources.jar
File size: 608762 bytes
Release date: 2018-10-09
Download 

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