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iText kernel.jar Source Code
kernel.jar is a component in iText Java library to provide low-level 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 kernel.pom as the build configuration file.
The source code of kernel-7.1.4.jar is provided below:
✍: FYIcenter.com
⏎ com/itextpdf/kernel/font/DocType1Font.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.kernel.font; import com.itextpdf.io.font.FontEncoding; import com.itextpdf.io.font.FontProgramFactory; import com.itextpdf.io.font.Type1Font; import com.itextpdf.io.font.cmap.CMapToUnicode; import com.itextpdf.io.font.otf.Glyph; import com.itextpdf.kernel.pdf.PdfArray; import com.itextpdf.kernel.pdf.PdfDictionary; import com.itextpdf.kernel.pdf.PdfName; import com.itextpdf.kernel.pdf.PdfNumber; import com.itextpdf.kernel.pdf.PdfStream; import com.itextpdf.kernel.pdf.PdfString; class DocType1Font extends Type1Font implements IDocFontProgram { private static final long serialVersionUID = 6260280563455951912L; private PdfStream fontFile; private PdfName fontFileName; private PdfName subtype; private int missingWidth = 0; private DocType1Font(String fontName) { super(fontName); } static Type1Font createFontProgram(PdfDictionary fontDictionary, FontEncoding fontEncoding, CMapToUnicode toUnicode) { PdfName baseFontName = fontDictionary.getAsName(PdfName.BaseFont); String baseFont; if (baseFontName != null) { baseFont = baseFontName.getValue(); } else { baseFont = FontUtil.createRandomFontName(); } if (!fontDictionary.containsKey(PdfName.FontDescriptor)) { Type1Font type1StdFont; try { //if there are no font modifiers, cached font could be used, //otherwise a new instance should be created. type1StdFont = (Type1Font) FontProgramFactory.createFont(baseFont, true); } catch (Exception e) { type1StdFont = null; } if (type1StdFont != null) { return type1StdFont; } } DocType1Font fontProgram = new DocType1Font(baseFont); PdfDictionary fontDesc = fontDictionary.getAsDictionary(PdfName.FontDescriptor); fontProgram.subtype = fontDesc.getAsName(PdfName.Subtype); fillFontDescriptor(fontProgram, fontDesc); PdfNumber firstCharNumber = fontDictionary.getAsNumber(PdfName.FirstChar); int firstChar = firstCharNumber != null ? Math.max(firstCharNumber.intValue(), 0) : 0; int[] widths = FontUtil.convertSimpleWidthsArray(fontDictionary.getAsArray(PdfName.Widths), firstChar, fontProgram.getMissingWidth()); fontProgram.avgWidth = 0; int glyphsWithWidths = 0; for (int i = 0; i < 256; i++) { Glyph glyph = new Glyph(i, widths[i], fontEncoding.getUnicode(i)); fontProgram.codeToGlyph.put(i, glyph); if (glyph.hasValidUnicode()) { //FontEncoding.codeToUnicode table has higher priority if (fontEncoding.convertToByte(glyph.getUnicode()) == i) { fontProgram.unicodeToGlyph.put(glyph.getUnicode(), glyph); } } else if (toUnicode != null) { glyph.setChars(toUnicode.lookup(i)); } if (widths[i] > 0) { glyphsWithWidths++; fontProgram.avgWidth += widths[i]; } } if (glyphsWithWidths != 0) { fontProgram.avgWidth /= glyphsWithWidths; } return fontProgram; } @Override public PdfStream getFontFile() { return fontFile; } @Override public PdfName getFontFileName() { return fontFileName; } @Override public PdfName getSubtype() { return subtype; } /** * Returns false, because we cannot rely on an actual font subset and font name. * * @param fontName a font name or path to a font program * @return return false. */ @Override public boolean isBuiltWith(String fontName) { return false; } public int getMissingWidth() { return missingWidth; } static void fillFontDescriptor(DocType1Font font, PdfDictionary fontDesc) { if (fontDesc == null) { return; } PdfNumber v = fontDesc.getAsNumber(PdfName.Ascent); if (v != null) { font.setTypoAscender(v.intValue()); } v = fontDesc.getAsNumber(PdfName.Descent); if (v != null) { font.setTypoDescender(v.intValue()); } v = fontDesc.getAsNumber(PdfName.CapHeight); if (v != null) { font.setCapHeight(v.intValue()); } v = fontDesc.getAsNumber(PdfName.XHeight); if (v != null) { font.setXHeight(v.intValue()); } v = fontDesc.getAsNumber(PdfName.ItalicAngle); if (v != null) { font.setItalicAngle(v.intValue()); } v = fontDesc.getAsNumber(PdfName.StemV); if (v != null) { font.setStemV(v.intValue()); } v = fontDesc.getAsNumber(PdfName.StemH); if (v != null) { font.setStemH(v.intValue()); } v = fontDesc.getAsNumber(PdfName.FontWeight); if (v != null) { font.setFontWeight(v.intValue()); } v = fontDesc.getAsNumber(PdfName.MissingWidth); if (v != null) { font.missingWidth = v.intValue(); } PdfName fontStretch = fontDesc.getAsName(PdfName.FontStretch); if (fontStretch != null) { font.setFontStretch(fontStretch.getValue()); } PdfArray bboxValue = fontDesc.getAsArray(PdfName.FontBBox); if (bboxValue != null) { int[] bbox = new int[4]; //llx bbox[0] = bboxValue.getAsNumber(0).intValue(); //lly bbox[1] = bboxValue.getAsNumber(1).intValue(); //urx bbox[2] = bboxValue.getAsNumber(2).intValue(); //ury bbox[3] = bboxValue.getAsNumber(3).intValue(); if (bbox[0] > bbox[2]) { int t = bbox[0]; bbox[0] = bbox[2]; bbox[2] = t; } if (bbox[1] > bbox[3]) { int t = bbox[1]; bbox[1] = bbox[3]; bbox[3] = t; } font.setBbox(bbox); // If ascender or descender in font descriptor are zero, we still want to get more or less correct valuee for // text extraction, stamping etc. Thus we rely on font bbox in this case if (font.getFontMetrics().getTypoAscender() == 0 && font.getFontMetrics().getTypoDescender() == 0) { float maxAscent = Math.max(bbox[3], font.getFontMetrics().getTypoAscender()); float minDescent = Math.min(bbox[1], font.getFontMetrics().getTypoDescender()); font.setTypoAscender((int) (maxAscent * 1000 / (maxAscent - minDescent))); font.setTypoDescender((int) (minDescent * 1000 / (maxAscent - minDescent))); } } PdfString fontFamily = fontDesc.getAsString(PdfName.FontFamily); if (fontFamily != null) { font.setFontFamily(fontFamily.getValue()); } PdfNumber flagsValue = fontDesc.getAsNumber(PdfName.Flags); if (flagsValue != null) { int flags = flagsValue.intValue(); if ((flags & 1) != 0) { font.setFixedPitch(true); } if ((flags & 262144) != 0) { font.setBold(true); } } PdfName[] fontFileNames = new PdfName[] {PdfName.FontFile, PdfName.FontFile2, PdfName.FontFile3}; for (PdfName fontFile: fontFileNames) { if (fontDesc.containsKey(fontFile)) { font.fontFileName = fontFile; font.fontFile = fontDesc.getAsStream(fontFile); break; } } } }
⏎ com/itextpdf/kernel/font/DocType1Font.java
Or download all of them as a single archive file:
File name: kernel-7.1.4-sources.jar File size: 1201221 bytes Release date: 2018-10-09 Download
⇐ Download and Install iText7-Core-7.1.4.zip
2010-02-18, 85199👍, 0💬
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