我想将文档导出到PdfAConformanceLevel.PDF_A_1B一致性，但是当我执行document.close时，我得到以下错误，导致pdf不可用。
我使用以下itext版本：
com.itextpdf.text.pdf.PdfAConformanceException: Real number is out of range.
at com.itextpdf.text.pdf.internal.PdfA1Checker.checkPdfObject(PdfA1Checker.java:259)
at com.itextpdf.text.pdf.internal.PdfAChecker.checkPdfAConformance(PdfAChecker.java:208)
at com.itextpdf.text.pdf.internal.PdfAConformanceImp.checkPdfIsoConformance(PdfAConformanceImp.java:71)
at com.itextpdf.text.pdf.PdfWriter.checkPdfIsoConformance(PdfWriter.java:3480)
at com.itextpdf.text.pdf.PdfWriter.checkPdfIsoConformance(PdfWriter.java:3476)
at com.itextpdf.text.pdf.PdfObject.toPdf(PdfObject.java:174)
at com.itextpdf.text.pdf.PdfArray.toPdf(PdfArray.java:175)
at com.itextpdf.text.pdf.PdfDictionary.toPdf(PdfDictionary.java:149)
at com.itextpdf.text.pdf.PdfStream.superToPdf(PdfStream.java:278)
at com.itextpdf.text.pdf.PRStream.toPdf(PRStream.java:239)
at com.itextpdf.text.pdf.PdfIndirectObject.writeTo(PdfIndirectObject.java:158)
at com.itextpdf.text.pdf.PdfWriter$PdfBody.write(PdfWriter.java:420)
at com.itextpdf.text.pdf.PdfWriter$PdfBody.add(PdfWriter.java:398)
at com.itextpdf.text.pdf.PdfWriter$PdfBody.add(PdfWriter.java:377)
at com.itextpdf.text.pdf.PdfWriter.addToBody(PdfWriter.java:872)
at com.itextpdf.text.pdf.PdfReaderInstance.writeAllVisited(PdfReaderInstance.java:161)
at com.itextpdf.text.pdf.PdfReaderInstance.writeAllPages(PdfReaderInstance.java:177)
at com.itextpdf.text.pdf.PdfWriter.addSharedObjectsToBody(PdfWriter.java:1380)
at com.itextpdf.text.pdf.PdfWriter.close(PdfWriter.java:1264)
at com.itextpdf.text.pdf.PdfAWriter.close(PdfAWriter.java:337)
at com.itextpdf.text.pdf.PdfDocument.close(PdfDocument.java:889)
at com.itextpdf.text.Document.close(Document.java:416)
at si.telekom.erender.ERenderImpl.mergeContentOfItems(ERenderImpl.java:2911)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:75)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:279)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.sun.xml.ws.api.server.MethodUtil.invoke(MethodUtil.java:83)
at com.sun.xml.ws.api.server.InstanceResolver$1.invoke(InstanceResolver.java:250)
at com.sun.xml.ws.server.InvokerTube$2.invoke(InvokerTube.java:149)
at com.sun.xml.ws.server.sei.SEIInvokerTube.processRequest(SEIInvokerTube.java:88)
at com.sun.xml.ws.api.pipe.Fiber.__doRun(Fiber.java:1136)
at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:1050)
at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:1019)
at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:877)
at com.sun.xml.ws.server.WSEndpointImpl$2.process(WSEndpointImpl.java:419)
at com.sun.xml.ws.transport.http.HttpAdapter$HttpToolkit.handle(HttpAdapter.java:868)
at com.sun.xml.ws.transport.http.HttpAdapter.handle(HttpAdapter.java:422)
at com.sun.xml.ws.transport.http.servlet.ServletAdapter.invokeAsync(ServletAdapter.java:225)
at com.sun.xml.ws.transport.http.servlet.WSServletDelegate.doGet(WSServletDelegate.java:161)
at com.sun.xml.ws.transport.http.servlet.WSServletDelegate.doPost(WSServletDelegate.java:197)
at com.sun.xml.ws.transport.http.servlet.WSServlet.doPost(WSServlet.java:81)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
堆栈跟踪：
public byte[] mergeContentOfItems(List<MergeItem> items) throws ErenderException {
MessageContext mc = wsCtx.getMessageContext();
HttpServletRequest req = (HttpServletRequest) mc.get(MessageContext.SERVLET_REQUEST);
getLogger().info("Webservice method 'mergeContentOfItems' called from IP:" + req.getRemoteAddr());
if (items.size() < 1) {
String errDescription = "No barcodes specified!";
throw new ErenderException(errDescription, new ErenderExceptionBean("201", errDescription),
new Throwable(errDescription));
}
com.itextpdf.text.Document document = new com.itextpdf.text.Document();
ByteArrayOutputStream baOs = new ByteArrayOutputStream();
PdfWriter writer = null;
List<PdfReader> readers = new ArrayList<PdfReader>();
int totalPages = 0;
try {
// Create a writer for the outputstream
writer = PdfAWriter.getInstance(document, baOs, PdfAConformanceLevel.PDF_A_1B);
writer.setPdfVersion(PdfWriter.PDF_VERSION_1_4);
writer.createXmpMetadata();
//writer = PdfWriter.getInstance(document, baOs);
document.open();
ICC_Profile icc = ICC_Profile
.getInstance(Thread.currentThread().getContextClassLoader().getResourceAsStream("srgb.profile"));
writer.setOutputIntents("Custom", "", "http://www.color.org", "sRGB IEC61966-2.1", icc);
PdfContentByte cb = writer.getDirectContent(); // Holds the PDF
for (int i = 0; i < items.size(); i++) {
String pdfFileName = null;
File urlTempFile = null;
if (items.get(i).getBarcode() != null) {
Template tmpl = TemplatesSynchronizer.getTemplateByBarcode(items.get(i).getBarcode());
String fileName = tmpl.getName();
pdfFileName = fileName.substring(0, fileName.indexOf(".")) + ".pdf";
getLogger().info("\tworking on:" + items.get(i) + " fileName:" + pdfFileName);
if (!new File(pdfFileName).exists()) {
String msg = String.format("Datoteka %s ne obstaja", pdfFileName);
throw new ErenderException("Error", new ErenderExceptionBean("109", msg, new Exception(msg)));
}
} else if (items.get(i).getUrl() != null) {
urlTempFile = File.createTempFile("myTemp", "pdf");
FileUtils.copyURLToFile(new URL(items.get(i).getUrl()), urlTempFile);
}
if (pdfFileName != null || urlTempFile != null) {
PdfReader pdfReader = null;
if (pdfFileName != null)
pdfReader = new PdfReader(pdfFileName);
else if (urlTempFile != null)
pdfReader = new PdfReader(urlTempFile.getAbsolutePath());
if (pdfReader != null) {
// Create Readers for the pdfs.
readers.add(pdfReader);
totalPages += pdfReader.getNumberOfPages();
int pageOfCurrentReaderPDF = 0;
while (pageOfCurrentReaderPDF < pdfReader.getNumberOfPages()) {
document.newPage();
pageOfCurrentReaderPDF++;
PdfImportedPage page = writer.getImportedPage(pdfReader, pageOfCurrentReaderPDF);
document.setPageSize(pdfReader.getPageSizeWithRotation(pageOfCurrentReaderPDF));
document.newPage();
cb.addTemplate(page, 0, 0);
}
}
if (urlTempFile != null)
urlTempFile.delete();
}
}
} catch (Throwable ex) {
StringWriter errorStringWriter = new StringWriter();
PrintWriter pw = new PrintWriter(errorStringWriter);
ex.printStackTrace(pw);
Logger.getLogger(this.getClass()).error(errorStringWriter.getBuffer().toString());
throw new ErenderException("Error", new ErenderExceptionBean("109", "Napaka v merge metodi.",ex), ex);
} finally {
if (document != null && document.isOpen())
try {
document.close();
} catch (Exception ex) {
StringWriter errorStringWriter = new StringWriter();
PrintWriter pw = new PrintWriter(errorStringWriter);
ex.printStackTrace(pw);
Logger.getLogger(this.getClass()).error(errorStringWriter.getBuffer().toString());
getLogger().error("Unable to close document.\n" + errorStringWriter);
}
if (writer != null && writer.isCloseStream()) {
try {
writer.flush();
writer.close();
} catch (Exception ex) {
getLogger().error("Unable to flush or close writer");
}
}
try {
baOs.flush();
baOs.close();
} catch (Exception ex) {
getLogger().error("Unable to close baOs in mergeContent method.");
}
}
getLogger().info("Webservice method 'mergeContent' called from IP:" + req.getRemoteAddr() + " ended. " + totalPages
+ " merged.");
return baOs.toByteArray();
}
我使用以下代码制作PDF：
def method1(values):
ret = str(values)
return ret
value = method1([1,2]).
由于我没有收到其他文件的错误，这似乎是特定的输入文件 - 这是一个重现错误的文件： 我正在尝试转换此输入pdf文件： http://filebin.ca/2hR2xO1SNlzh/09062009073008005.pdf
答案 0 :(得分：4)
首先：iText不会将普通 PDF文档转换为PDF / A文档。我们有使用iText的客户来做这件事，但他们的代码比你的代码要复杂得多。
iText不将普通PDF文档转换为PDF / A的原因应该是显而易见的：普通PDF可能没有PDF / A中所需的所有必要功能。您可能拥有未嵌入字体的PDF。在这种情况下，有人需要提供适当的字体程序。 iText不附带任何字体程序，因此使用 iText软件必须提供此功能。
在您的代码中，您只需复制内容流，而不会检查任何可能导致最终结果不符合PDF / A的问题。您应该非常小心生成的PDF。他们会将文件声明的蓝色条显示为PDF / A，但这并不意味着当您通过文件时，该文件将验证作为PDF验证
现在为您解决问题。您想将普通PDF转换为PDF / A-1。 PDF / A-1基于2001年的PDF 1.4。这意味着您不能使用在 2001之后引入的任何新功能。在PDF 1.4中，存在限制方面的问题对象号。 PDF中的对象编号不能超过32,767。此限制已从PDF 1.5中的PDF中删除。
我的猜测是，您描述的问题是由于您尝试使用比PDF 1.4中允许的更多对象创建PDF 1.4而导致的。可能有两个原因：
这可以通过生成PDF / A-2而不是PDF / A-1来解决，但我很确定您很快就会遇到其他限制（例如，缺少由创建文件引起的字体和其他问题那个声明是一个PDF，但事实并非如此）。当你尝试做出明显错误的事情时，PdfAWriter会抛出异常，但不能保证错过一些更微妙的PDF / A要求。