使用pdfbox将pdf转为图片是报字体不存在的错误

Question

2020-05-25 14:12:16 [ERROR]-[org.apache.pdfbox.pdmodel.font.FileSystemFontProvider] Could not load font file: C:\Windows\FONTS\mstmc.ttf
java.io.EOFException
    at org.apache.fontbox.ttf.TTFDataStream.readUnsignedInt(TTFDataStream.java:152)
    at org.apache.fontbox.ttf.TTFParser.readTableDirectory(TTFParser.java:312)
    at org.apache.fontbox.ttf.TTFParser.parse(TTFParser.java:139)
    at org.apache.fontbox.ttf.TTFParser.parse(TTFParser.java:87)
    at org.apache.pdfbox.pdmodel.font.FileSystemFontProvider.addTrueTypeFont(FileSystemFontProvider.java:539)
    at org.apache.pdfbox.pdmodel.font.FileSystemFontProvider.scanFonts(FileSystemFontProvider.java:255)
    at org.apache.pdfbox.pdmodel.font.FileSystemFontProvider.<init>(FileSystemFontProvider.java:234)
    at org.apache.pdfbox.pdmodel.font.FontMapperImpl$DefaultFontProvider.<clinit>(FontMapperImpl.java:420)
    at org.apache.pdfbox.pdmodel.font.FontMapperImpl.getProvider(FontMapperImpl.java:95)
    at org.apache.pdfbox.pdmodel.font.FontMapperImpl.findFont(FontMapperImpl.java:243)
    at org.apache.pdfbox.pdmodel.font.FontMapperImpl.findFontBoxFont(FontMapperImpl.java:224)
    at org.apache.pdfbox.pdmodel.font.FontMapperImpl.getFontBoxFont(FontMapperImpl.java:209)
    at org.apache.pdfbox.pdmodel.font.PDType1Font.<init>(PDType1Font.java:146)
    at org.apache.pdfbox.pdmodel.font.PDType1Font.<clinit>(PDType1Font.java:79)
    at org.apache.pdfbox.pdmodel.font.PDFontFactory.createFont(PDFontFactory.java:62)
    at org.apache.pdfbox.pdmodel.PDResources.getFont(PDResources.java:146)
    at org.apache.pdfbox.contentstream.operator.text.SetFontAndSize.process(SetFontAndSize.java:60)
    at org.apache.pdfbox.contentstream.PDFStreamEngine.processOperator(PDFStreamEngine.java:848)
    at org.apache.pdfbox.contentstream.PDFStreamEngine.processStreamOperators(PDFStreamEngine.java:503)
    at org.apache.pdfbox.contentstream.PDFStreamEngine.processStream(PDFStreamEngine.java:477)
    at org.apache.pdfbox.contentstream.PDFStreamEngine.processPage(PDFStreamEngine.java:150)
    at org.apache.pdfbox.rendering.PageDrawer.drawPage(PageDrawer.java:246)
    at org.apache.pdfbox.rendering.PDFRenderer.renderImage(PDFRenderer.java:225)
    at org.apache.pdfbox.rendering.PDFRenderer.renderImageWithDPI(PDFRenderer.java:150)
    at com.cbnb.oa.controller.YdqzController.uploadPdfFile(YdqzController.java:83)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:854)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:765)
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:661)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
    at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:800)
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:806)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1498)
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:748)

找了很久也没有解决，求助

Answer 1

我今天也遇到了这个问题，找到了解决方法；
看我的博文：https://blog.csdn.net/qq_36299991/article/details/128185698
——————分割线——————
按照报错日志，文件资源管理器路径下没找到这个字体文件；
然后去百度找这个字体想安装上，找了一圈也没找到，也没看到啥有关的文章；
谷歌看看，找到了些有价值的问答；
https://stackoverflow.com/questions/67588149/pdfbox-eofexception-null-when-setting-textfield-value?newreg=4b300bf7c00643c3b2d49957be6e50b4
PDFBox的官网也有bug记录；
https://issues.apache.org/jira/browse/PDFBOX-5095
按照他们的对话描述，网上找到mstmc.ttf打开看不太像是字体文件，或者这个字体文件已经损坏，explorer.exe文件资源管理器把这个文件忽略了所以看不到，直接使用CMD去这个路径下看看：

Microsoft Windows [版本 10.0.19044.2251]
(c) Microsoft Corporation。保留所有权利。
C:\Users\Administrator>cd /windows/fonts
C:\Windows\Fonts>dir /s mstmc*
 驱动器 C 中的卷是 系统
 卷的序列号是 0284-E676
 C:\Windows\Fonts 的目录
2022/05/04  02:05             4,096 mstmc.ttf
               1 个文件          4,096 字节
C:\Windows\Fonts>copy mstmc.ttf d:\
C:\Windows\Fonts>del mstmc.ttf
已复制         1 个文件。

于是我把这个文件备份到D盘根目录，然后把当前的删掉了，再次运行程序就解决了；