Java doc to PDF

The mainstream WORD to PDF tool in the market is two: OpenOffice and Microsoft Office go
Plug-ins, you can implement WORD to PDF functionality by deploying these two tools.

1:

Microsoft provides a conversion plug-in that implements the Office to PDF feature, which
Saveaspdfandxps. This plug-in is a COM component, and for languages such as C + +, C #, you can directly make
, in the case of the JAVA language, you need to invoke the COM component through Jacob.
Saveaspdfandxps plug-in requires a Windows server as a conversion server.
Install the version above Microsoft Office2007 before installing the Saveaspdfandxps plug-in.
Finally, the COM component is called to implement the transformation.
Official address: https://msdn.microsoft.com/en-us/library/dd301166 (v=nav.90). aspx

2.

OpenOffice is an open-source office suite with MS Word,excel,powerpoint and more.
Software that supports multiple formats, including MS Office 2007, and enables
Out as PDF files.
This scenario is to install OpenOffice on a Linux server and then convert by OpenOffice command
Pdf.
Official website: http://www.openoffice.org/

Under Ubuntu:

1. Tar-xvzf apache_openoffice_4.1.3_linux_x86-64_install-deb_zh-cn.tar.gz
2. CD zh-cn/debs/
3. sudo dpkg-i *.deb
4. CD desktop-integration/
5. sudo dpkg-i openoffice4.1-debian-menus_4.1.3-9783_all.deb

Soffice--headless--accept= "SOCKET,HOST=127.0.0.1,PORT=8100;URP;"--nofirststartwizard &

Start the service, # Netstat-an|more, to see if the boot was successful (if there is a 8100 port service)

 Packageopenofficetest; ImportJava.io.File; ImportJava.io.FileInputStream; ImportJava.io.FileOutputStream; ImportJava.io.InputStream; ImportJava.io.OutputStream; Importjava.net.ConnectException; ImportCom.artofsolving.jodconverter.DefaultDocumentFormatRegistry; ImportCom.artofsolving.jodconverter.DocumentConverter; ImportCom.artofsolving.jodconverter.DocumentFormat; Importcom.artofsolving.jodconverter.openoffice.connection.OpenOfficeConnection; Importcom.artofsolving.jodconverter.openoffice.connection.SocketOpenOfficeConnection; ImportCom.artofsolving.jodconverter.openoffice.converter.OpenOfficeDocumentConverter;  Public classWord2pdf { Public Static intPORT = 8100;  Public Static voidMain (string[] args) {String path1= "/tmp/1.doc"; String path2= "/tmp/2.pdf"; Try{wordtopdf (path1, path2); } Catch(Exception e) {e.printstacktrace (); }      }              Public Static voidwordtopdf (String path1, string path2)throwsException {File file1=NewFile (path1); File file2=NewFile (path2); //Get file FormatDefaultdocumentformatregistry Formatreg =NewDefaultdocumentformatregistry (); Documentformat Pdfformat= Formatreg.getformatbyfileextension ("PDF"); Documentformat Docformat= Formatreg.getformatbyfileextension ("Doc"); //Stream form of streamInputStream InputStream =NewFileInputStream (FILE1); OutputStream OutputStream=NewFileOutputStream (file2); /**          *           */openofficeconnection Connection=NewSocketopenofficeconnection (PORT);          System.out.println (connection); Try{connection.connect (); Documentconverter Converter=NewOpenofficedocumentconverter (connection); Converter.convert (InputStream, Docformat, OutputStream, Pdfformat); } Catch(connectexception e) {e.printstacktrace (); } finally {              if(Connection! =NULL) {connection.disconnect (); Connection=NULL; }          }      }       }  

However, after testing, OpenOffice conversion speed is obviously very slow, mainly in the acquisition of openofficeconnection this piece, I have not yet found a way to significantly improve the speed, there is a third method based on LibreOffice to do the conversion.

Prerequisites: To install LibreOffice, libreoffice-headless

installation command:

Yum Install Libreoffice-y

Yum Install Libreoffice-headless-y

Conversion command: LibreOffice--headless--convert-to pdf:writer_pdf_export--outdir/tmp//tmp/test.doc

Where/tmp/test.doc is the doc file for the test, the resulting PDF file will be under/tmp/and the name will be the same as the doc name.

The following is a way to return the PDF file stream as input to the doc file stream in the project.

 Public Static byte[] Topdf (byte[] b, String sourceFileName)throwsexception{File tempdir=NULL; Try{tempdir=Files.createtempdir (); String Canonicalpath=Tempdir.getcanonicalpath (); File File=NewFile (Canonicalpath + "/" +sourceFileName); OutputStream OS=Newfileoutputstream (file); Bufferedoutputstream Bufferedoutput=Newbufferedoutputstream (OS);                        Bufferedoutput.write (b); String Command= "LibreOffice"; Process proc=NewProcessbuilder (Command, "--headless", "--convert-to", "Pdf:writer_pdf_export", "--outdir", Canonicalpath, Canonicalpath + "/" +sourcefilename). Redirecterrorstream (true). Start (); ArrayList<String> output =NewArraylist<string>(); BufferedReader BR=NewBufferedReader (NewInputStreamReader (Proc.getinputstream ())); String Line=NULL;  while(line = Br.readline ())! =NULL) Output.add (line); Logger.info ("Output of the Execute PDF conversion command:" +stringutils.join (output, System.lineseparator ())); if(0! =proc.waitfor ())Throw NewException ("Conversion failed"); file[] Files=Tempdir.listfiles ();  for(File file2:files) {if(File2.getpath (). EndsWith (". pdf")) {                    returnIoutils.tobytearray (NewFileInputStream (file2)); }            }            return NULL; }finally{            if(TempDir! =NULL) fileutils.deletedirectory (tempdir); }    }

Java doc to PDF