让PDF文件也支持书签功能

煎饼 · 发表于 2011-5-20 10:18:49

最近经常看一些PDF的电子文档，痛苦的是Adobe Reader竟然没有提供书签的功能，每次看完之后再回到上次看的地方都很麻，到网上一找，还真有人就做了PDF的书签，下载一试效果不错，于是参看了一下Adobe Reader的SDK，修改了一点地方，以更方便的使用,下面是程序的使用方法
1、打开编辑的首选项项

2、确保下面的选项都被选中

3 把下面的代码保存为一个bookmark_page.js文件
// bookmark_page.js, ver. 1.0
// visit: www.pdfhacks.com/bookmark_page/
// edit:cjs 2008-02-17
// 1 修改为中文标签
// 2 设置书签时可以自动获取当前的书名
// 3 自动获取当前所在的页码与总页数,方便查阅
// 4 实现更多功能可以参看Adobe Reader的SDK

// use this delimiter for serializing our array
var bp_delim= '%#%#';
function SaveData( data ) ...{
  // data is an array of arrays that needs
  // to be serialized and stored into a persistent
  // global string
  var ds= '';
  for( ii= 0; ii< data.length; ++ii ) ...{
for( jj= 0; jj< 3; ++jj ) ...{
   if( ii!= 0 || jj!= 0 )
      ds+= bp_delim;
   ds+= data[ii][jj];
}
  }
  global.pdf_hacks_js_bookmarks= ds;
  global.setPersistent( "pdf_hacks_js_bookmarks", true );
}
function GetData() ...{
  // reverse of SaveData; return an array of arrays
  if( global.pdf_hacks_js_bookmarks== null ) ...{
return new Array(0);
  }
  var flat= global.pdf_hacks_js_bookmarks.split( bp_delim );
  var data= new Array();
  for( ii= 0; ii< flat.length; ) ...{
var record= new Array();
for( jj= 0; jj< 3 && ii< flat.length; ++ii, ++jj ) ...{
   record.push( flat[ii] );
}
if( record.length== 3 ) ...{
   data.push( record );
}
  }
  return data;
}
//Get Current Date
function DateNow()...{
var d, s ;
d = new Date();
s = d.getFullYear()+"/";
s += (d.getMonth() + 1) + "/";
s += d.getDate() ;
/**//*
s += d.getHours() + ":";
s += d.getMinutes() + ":";
s += d.getSeconds() ;
*/
return(s);
}

function AddBookmark() ...{
  // query the user for a name, and then combine it with
  // the current PDF page to create a record; store this record
  var thisfilename=this.documentFileName;
  thisfilename=thisfilename.substr(0,thisfilename.lastIndexOf("."));
  var numPlugInss=this.pageNum+1;
  var currentdate=DateNow();
  var label=
app.response( "书签名称,可以修改以便于记忆:",
               "书签名称",
               "《"+thisfilename+"》第 "+numPlugInss+" 页/共 "+this.numPages+" 页  "+currentdate,
               false );
  if( label!= null ) ...{
var record= new Array(3);
record[0]= label;
record[1]= this.path;
record[2]= this.pageNum;
data= GetData();
data.push( record );
SaveData( data );
  }
}
function ShowBookmarks() ...{
  // show a pop-up menu; this seems to only work when
  // a PDF is alreay in the viewer;
  var data= GetData();
  var items= '';
  for( ii= 0; ii< data.length; ++ii ) ...{
if( ii!= 0 )
   items+= ', ';
items+= '"'+ ii+ ': '+ data[ii][0]+ '"';
  }
  // assemble the command and the execute it with eval()
  var command= 'app.popUpMenu( '+ items+ ' );';
  var selection= eval( command );
  if( selection== null ) ...{
return; // exit
  }
  // the user made a selection; parse out its index and use it
  // to access the bookmark record
  var index= 0;
  // toString() converts the String object to a string literal
  // eval() converts the string literal to a number
  index= eval( selection.substring( 0, selection.indexOf(':') ).toString() );
  if( index< data.length ) ...{
try ...{
   // the document must be 'disclosed' for us to have any access
   // to its properties, so we use these FirstPage NextPage calls
   //
   app.openDoc( data[index][1] );
   app.execMenuItem( "FirstPage" );
   for( ii= 0; ii< data[index][2]; ++ii ) ...{
      app.execMenuItem( "NextPage" );
   }
}
catch( ee ) ...{
   var response=
      app.alert("打开书签错误. 是否删除本书签?", 2, 2,"删除书签");
   if( response== 4 && index< data.length ) ...{
      data.splice( index, 1 );
      SaveData( data );
   }
}
  }
}
function DropBookmark() ...{
  // modelled after ShowBookmarks()
  var data= GetData();
  var items= '';
  for( ii= 0; ii< data.length; ++ii ) ...{
if( ii!= 0 )
   items+= ', ';
items+= '"'+ ii+ ': '+ data[ii][0]+ '"';
  }
  var command= 'app.popUpMenu( '+ items+ ' );';
  var selection= eval( command );
  if( selection== null ) ...{
return; // exit
  }
  var index= 0;
  index= eval( selection.substring( 0, selection.indexOf(':') ).toString() );
  if( index< data.length ) ...{
data.splice( index, 1 );
SaveData( data );
  }
}
function ClearBookmarks() ...{
  if( app.alert("确认要清除所有的书签吗?", 2, 2,"删除书签" )== 4 ) ...{
SaveData( new Array(0) );
  }
}
app.addMenuItem( ...{
cName: "-",             // menu divider
cParent: "View",       // append to the View menu
cExec: "void(0);" } );
app.addMenuItem( ...{
cName: "设置本页为书签(&B)",
cParent: "View",
cExec: "AddBookmark();",
cEnable: "event.rc= (event.target != null);" } );
app.addMenuItem( ...{
cName: "转到指定书签(&T)",
cParent: "View",
cExec: "ShowBookmarks();",
cEnable: "event.rc= (event.target != null);" } );
//cEnable: "event.rc= true;" } );
app.addMenuItem( ...{
cName: "删除一个书签(&D)",
cParent: "View",
cExec: "DropBookmark();",
cEnable: "event.rc= (event.target != null);" } );
app.addMenuItem( ...{
cName: "清除所有书签(&C)",
cParent: "View",
cExec: "ClearBookmarks();",
cEnable: "event.rc= true;" } );
4 将文件拷贝到C:\Program Files\Adobe\Reader 8.0\Reader\Javascripts目录下
5 重新打开Adobe Reader,看看下面的图形，相信不用说任何东西，大家都会用了

本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/aohan/archive/2008/02/20/2108051.aspx

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