阅读文本大概需要3分钟。
itext提供可HTML转PDF的工具包,但是在中文字体时也许会遇到意想不到的问题。特别宋体对应的粗体。
0x01:引入itext包
com.itextpdf
itext7-core
7.1.11
pom
com.itextpdf
html2pdf
2.0.2
0x02:要转换的HTML文件
iText
大发发发萨法发发呆发呆东方大厦发Yourdeveloperhere法大大是地方大发顺丰萨法发顺丰的here法大大是地方大发顺丰萨法发顺丰的here法大大是地方大发顺丰萨法发顺丰的here法大大是地方大发顺丰萨法发顺丰的here法大大是地方大发顺丰萨法发顺丰的here法大大是地方大发顺丰萨法发顺丰的here法大大是地方大发顺丰萨法发顺丰的journeywithiTextbeginshere法大大是地方大发顺丰萨法发顺丰的Yourdeveloperhere法大大是地方大发顺丰萨法发顺丰的here法大大是地方大发顺丰萨法发顺丰的here法大大是地方大发顺丰萨法发顺丰的here法大大是地方大发顺丰萨法发顺丰的here法大大是地方大发顺丰萨法发顺丰的here法大大是地方大发顺丰萨法发顺丰的here法大大是地方大发顺丰萨法发顺丰的journeywithiTextbeginshere法大大是地方大发顺丰萨法发顺丰的
iText
大发发发萨法发发呆发呆东方大厦发Yourdeveloperhere法大大是地方大发顺丰萨法发顺丰的here法大大是地方大发顺丰萨法发顺丰的here法大大是地方大发顺丰萨法发顺丰的here法大大是地方大发顺丰萨法发顺丰的here法大大是地方大发顺丰萨法发顺丰的here法大大是地方大发顺丰萨法发顺丰的here法大大是地方大发顺丰萨法发顺丰的journeywithiTextbeginshere法大大是地方大发顺丰萨法发顺丰的Yourdeveloperhere法大大是地方大发顺丰萨法发顺丰的here法大大是地方大发顺丰萨法发顺丰的here法大大是地方大发顺丰萨法发顺丰的here法大大是地方大发顺丰萨法发顺丰的here法大大是地方大发顺丰萨法发顺丰的here法大大是地方大发顺丰萨法发顺丰的here法大大是地方大发顺丰萨法发顺丰的journeywithiTextbeginshere法大大是地方大发顺丰萨法发顺丰的
0x03:编写代码itext默认字体publicstaticvoiddefaultFont()throwsException{
try{
StringpdfPath="C:\\Users\\2230\\Desktop\\a\\defaultFont.pdf";
PdfWriterpdfWriter=newPdfWriter(newFile(pdfPath));
PdfDocumentpdfDocument=newPdfDocument(pdfWriter);
Documentdoc=newDocument(pdfDocument);
pdfDocument.setDefaultPageSize(PageSize.A4);
pdfDocument.addEventHandler(PdfDocumentEvent.END_PAGE,newTextFooterEventHandler(doc));
ConverterPropertiespro=newConverterProperties();
FontProviderfontProvider=newDefaultFontProvider();
fontProvider.addSystemFonts();
pro.setFontProvider(fontProvider);
HtmlConverter.convertToPdf(newFileInputStream("C:\\Users\\2230\\Desktop\\a\\d.html"),pdfDocument,pro);
}catch(Exceptione){
e.printStackTrace();
}
}
默认转换结果
加载宋体
这里只加载了宋体,没有加载宋粗体publicstaticvoidsongTiDefaultFont()throwsException{
try{
StringpdfPath="C:\\Users\\2230\\Desktop\\a\\songTiDefaultFont.pdf";
PdfWriterpdfWriter=newPdfWriter(newFile(pdfPath));
PdfDocumentpdfDocument=newPdfDocument(pdfWriter);
Documentdoc=newDocument(pdfDocument);
pdfDocument.setDefaultPageSize(PageSize.A4);
pdfDocument.addEventHandler(PdfDocumentEvent.END_PAGE,newTextFooterEventHandler(doc));
ConverterPropertiespro=newConverterProperties();
FontProviderfontProvider=newDefaultFontProvider();
//宋体
FontProgramfontProgram1=FontProgramFactory.createFont("C:\\Users\\2230\\Desktop\\a\\simsun.ttc,1");
fontProvider.addFont(fontProgram1);
pro.setFontProvider(fontProvider);
HtmlConverter.convertToPdf(newFileInputStream("C:\\Users\\2230\\Desktop\\a\\d.html"),pdfDocument,pro);
}catch(Exceptione){
e.printStackTrace();
}
}
发现转换出来的PDF,丢失了字体样式
分析原因发现C:\Windows\Fonts默认没有宋体粗字体,默认只有宋体常规
网上下载宋体粗字体宋体-粗体.ttf,下载的都是ttf格式;代码加载宋体粗字体publicstaticvoidsongTiDefaultFont()throwsException{
try{
StringpdfPath="C:\\Users\\2230\\Desktop\\a\\songTiDefaultFont.pdf";
PdfWriterpdfWriter=newPdfWriter(newFile(pdfPath));
PdfDocumentpdfDocument=newPdfDocument(pdfWriter);
Documentdoc=newDocument(pdfDocument);
pdfDocument.setDefaultPageSize(PageSize.A4);
pdfDocument.addEventHandler(PdfDocumentEvent.END_PAGE,newTextFooterEventHandler(doc));
ConverterPropertiespro=newConverterProperties();
FontProviderfontProvider=newDefaultFontProvider();
//宋体
FontProgramfontProgram1=FontProgramFactory.createFont("C:\\Users\\2230\\Desktop\\a\\simsun.ttc,1");
fontProvider.addFont(fontProgram1);
//宋体粗体
FontProgramfontProgram2=FontProgramFactory.createFont("C:\\Users\\2230\\Desktop\\a\\宋体-粗体.ttf");
fontProvider.addFont(fontProgram2);
pro.setFontProvider(fontProvider);
HtmlConverter.convertToPdf(newFileInputStream("C:\\Users\\2230\\Desktop\\a\\d.html"),pdfDocument,pro);
}catch(Exceptione){
e.printStackTrace();
}
}
多加了如下代码:
执行直接报错,字体无法加载
把ttf转换成otf格式字体
在线转换工具:/tool/convfont
publicstaticvoidsongConvertTiFont()throwsException{
try{
StringpdfPath="C:\\Users\\2230\\Desktop\\a\\songTiFont.pdf";
PdfWriterpdfWriter=newPdfWriter(newFile(pdfPath));
PdfDocumentpdfDocument=newPdfDocument(pdfWriter);
Documentdoc=newDocument(pdfDocument);
pdfDocument.setDefaultPageSize(PageSize.A4);
pdfDocument.addEventHandler(PdfDocumentEvent.END_PAGE,newTextFooterEventHandler(doc));
ConverterPropertiespro=newConverterProperties();
FontProviderfontProvider=newDefaultFontProvider();
fontProvider.addSystemFonts();
//宋体
FontProgramfontProgram1=FontProgramFactory.createFont("C:\\Users\\2230\\Desktop\\a\\simsun.ttc,0");
fontProvider.addFont(fontProgram1);
//宋体粗体
FontProgramfontProgram2=FontProgramFactory.createFont("C:\\Users\\2230\\Desktop\\a\\宋体-粗体.otf");
fontProvider.addFont(fontProgram2);
pro.setFontProvider(fontProvider);
HtmlConverter.convertToPdf(newFileInputStream("C:\\Users\\2230\\Desktop\\a\\d.html"),pdfDocument,pro);
}catch(Exceptione){
e.printStackTrace();
}
}
转换结果
关注我
每天进步一点点