java - iText7 : com.itextpdf.kernel.PdfException: Document was closed. It is impossible to execute action -


i got com.itextpdf.kernel.pdfexception: document closed. impossible execute action. error on itext7.

1   // update here              2   pdffont font;                3   {                4       gcsfilename gcsfilename = new gcsfilename("fonts", "msgothic001.ttf");           5       try (gcsinputchannel inputchannel =          6           gcsservice.openprefetchingreadchannel(gcsfilename, 0, buffer_size)) {        7           font =       8               pdffontfactory.createfont(   9                   getbytes(channels.newinputstream(inputchannel)), 10                  pdfencodings.identity_h, 11                  true); 12      }            13  }                14  // update until here                 15                   16  writerproperties wp = new writerproperties();                17  wp.usesmartmode();               18  try (pdfdocument writedoc = new pdfdocument(new pdfwriter(outputstream, wp))) {              19                   20      list<integer> keylist = arrays.aslist(integer.valueof(1), integer.valueof(2), integer.valueof(3));           21      (integer keynumber : keylist) {          22          logger.info(keynumber);                                                   // (1)         23          bytearrayoutputstream baos = new bytearrayoutputstream();        24          try (pdfwriter writer = new pdfwriter(baos);         25              pdfdocument readdoc =    26                  new pdfdocument(new pdfreader(new bytearrayinputstream(inputbytes)), writer)) { 27              pdfacroform pdfacroform = pdfacroform.getacroform(readdoc, false);   28              map<string, pdfformfield> fieldmap = pdfacroform.getformfields();    29              if (fieldmap != null && fieldmap.size() > 0) {       30                  set<string> fieldnameset = new hashset<>(fieldmap.keyset());  31                  (string fieldname : fieldnameset) { 32                      pdfacroform.renamefield(fieldname, fieldname + "_" + keynumber); 33                  } 34                  fieldmap = pdfacroform.getformfields(); 35              }    36                   37                   38              // update here  39              pdfformfield form = fieldmap.get("customer_" + keynumber);               40              form.setfont(font).setvalue("test test");    41              // update until here     42                   43          }                                           // (2) got error on line         44                   45          try (pdfdocument readdoc =       46              new pdfdocument(new pdfreader(new bytearrayinputstream(baos.tobytearray())))) {  47              readdoc.copypagesto(1, readdoc.getnumberofpages(), writedoc, new pdfpageformcopier());   48          }        49      }            50  }

i got output.

13:55:45.962 1      // (1) 13:55:47.252 2      // (1) 13:55:47.782 com.itextpdf.kernel.pdfexception: document closed. impossible execute action.     @ com.itextpdf.kernel.pdf.pdfdocument.checkclosingstatus(pdfdocument.java:1887)     @ com.itextpdf.kernel.pdf.pdfdocument.getwriter(pdfdocument.java:645)     @ com.itextpdf.kernel.pdf.pdfobject.makeindirect(pdfobject.java:228)     @ com.itextpdf.kernel.pdf.pdfdictionary.makeindirect(pdfdictionary.java:491)     @ com.itextpdf.kernel.pdf.pdfdictionary.makeindirect(pdfdictionary.java:57)     @ com.itextpdf.kernel.pdf.pdfobject.makeindirect(pdfobject.java:249)     @ com.itextpdf.kernel.pdf.pdfdictionary.makeindirect(pdfdictionary.java:479)     @ com.itextpdf.kernel.pdf.pdfdictionary.makeindirect(pdfdictionary.java:57)     @ com.itextpdf.kernel.font.pdffont.makeobjectindirect(pdffont.java:600)     @ com.itextpdf.kernel.font.pdftype0font.getfontdescriptor(pdftype0font.java:672)     @ com.itextpdf.kernel.font.pdftype0font.flushfontdata(pdftype0font.java:828)     @ com.itextpdf.kernel.font.pdftype0font.flush(pdftype0font.java:600)     @ com.itextpdf.kernel.pdf.pdfdocument.flushfonts(pdfdocument.java:1848)     @ com.itextpdf.kernel.pdf.pdfdocument.close(pdfdocument.java:800)     @ (our source (2) )

why got error? how can fix?

[update] found setting value font "ms gothic" (standard font on japanese windows) cause error. seems fonts cause error while others not. tried helvetica, not cause error. have updated program (from line 1 14, , line 38 41).

i have made literal copy of code:

package com.itextpdf.samples;  import java.io.bytearrayinputstream; import java.io.bytearrayoutputstream; import java.io.fileoutputstream; import java.io.ioexception; import java.util.hashset; import java.util.map; import java.util.set;  import com.itextpdf.forms.pdfacroform; import com.itextpdf.forms.pdfpageformcopier; import com.itextpdf.forms.fields.pdfformfield; import com.itextpdf.io.font.fontprogram; import com.itextpdf.io.font.fontprogramfactory; import com.itextpdf.kernel.font.pdffontfactory; import com.itextpdf.kernel.pdf.pdfdocument; import com.itextpdf.kernel.pdf.pdfreader; import com.itextpdf.kernel.pdf.pdfwriter; import com.itextpdf.kernel.pdf.writerproperties;  public class test {      public static void main(string[] args) throws ioexception {         fontprogram fontprogram = fontprogramfactory.createfont("c:/windows/fonts/msgothic.ttc,1");          fileoutputstream outputstream = new fileoutputstream("test.pdf");         writerproperties wp = new writerproperties();         wp.usesmartmode();         try (pdfdocument writedoc = new pdfdocument(new pdfwriter(outputstream, wp))) {              (int keynumber = 0; keynumber < 3; keynumber++) {                 bytearrayoutputstream baos = new bytearrayoutputstream();                 try (pdfwriter writer = new pdfwriter(baos);                     pdfdocument readdoc =                         new pdfdocument(new pdfreader("form.pdf"), writer)) {                     pdfacroform pdfacroform = pdfacroform.getacroform(readdoc, false);                     map<string, pdfformfield> fieldmap = pdfacroform.getformfields();                     if (fieldmap != null && fieldmap.size() > 0) {                             set<string> fieldnameset = new hashset<>(fieldmap.keyset());                          (string fieldname : fieldnameset) {                             pdfacroform.renamefield(fieldname, fieldname + "_" + keynumber);                         }                         fieldmap = pdfacroform.getformfields();                     }                      pdfformfield form = fieldmap.get("name_" + keynumber);                                   form.setfont(pdffontfactory.createfont(fontprogram)).setvalue("test test");                 }                   try (pdfdocument readdoc =                     new pdfdocument(new pdfreader(new bytearrayinputstream(baos.tobytearray())))) {                     readdoc.copypagesto(1, readdoc.getnumberofpages(), writedoc, new pdfpageformcopier());                 }             }         }     } }

it doesn't throw errors when run it.

i had make changes, because didn't know parameters such keylist about. can execute example, , tell me if problem persists?

  • if example still throws error: maybe aren't using recent version of itext 7. please upgrade , try anew.
  • if example doesn't throw error: try adapting example step step until error happens again. tell last step performed before error occurred.

update:

when create pdffont , when use pdffont instance in context of pdfdocument, pdffont "belongs" document, , can no longer reuse it. should create new pdffont instance every document. doesn't mean can't reuse fontprogram though.

i'll have updated example. use fontprogramfactory create fontprogram (i used quick & dirty way). don't reuse pdffont, use fontprogram create new pdffont every pdfdocument.


Comments

Post a Comment

Popular posts from this blog

angular - Ionic slides - dynamically add slides before and after -

hi i'm using ngfor create set of 3 slides while starting in middle i'm guaranteed able slide left or right on start. when slide right can simple listen reachedend , push slide array i'm looping. but have problem adding slide beginning. if same above , use e.g. array.unshift() or spread add item beginning, view think it's on position 0 , snaps view new slide. the code below work animates slide change index 1. slide = [0,1,2] //example loop slidechanged(event) { if(this.slides.isbeginning()){ this.slide = [this.slide[0]-1, ...this.slide]; this.slides.update(); this.slides.slideto(1) } } <ion-slides [initialslide]="1" (ionslidedidchange)="slidechanged($event)"> <ion-slide *ngfor="let item of slide"> <h1>slide {{item}}</h1> </ion-slide> </ion-slides> any appreciated! you can using ionslidenextend , ionslideprevend events slides . please...
Read more

Add a dynamic header in angular 2 http provider -

i have http interceptor built via tutorial https://scotch.io/@kashyapmukkamala/using-http-interceptor-with-angular2 the problem need have dynamic header changes automatically once changes 'mode' in app. service able tell interceptor change header, or have interceptor pull header (which string)from service each request. able throwing away patch method, call http.patch('new header string') set header string. call in service controls 'mode' setting. wondering if there way interceptor pull recent value service each request or if can add method http provider via interceptor? i've tried call service in interceptor each request returns undefined. because creating new instance of service or copying value before service fired , loaded/changed data. i don't want pass header string every http provider call because defeats purpose of having interceptor, id able set once changes or have provider fetch service before makes request. tl;dr : need add autom...
Read more

minify - Minimizing css files -

i want know how css files can minimized. currently, using external sites css minifier compress css files. however, after removing whitespaces, comments, etc, file sizes reduced 10-15%. how frameworks bootstrap manage make minimized versions kilobytes. as example, css is: body { background-color: #ff0; } the reduction goes 28 bytes 22 bytes other css files have lot more characters still smaller this. actually minifying code means it's remove thing code white space characters new line characters comments block delimiters it reduces amount of code has transferred on web , speed site load fastly.but unreadable format.
Read more