以前使用的Javascript 為Adobe Reader新增書籤功能，在Adobe Reader X中竟然中文選單全是亂碼，下午參考Adobe SDK的文件，修改了下。Adobe SDK 幫助地址：http://livedocs.adobe.com/acrobat_sdk/10/Acrobat10_HTMLHelp
1.解決了選單亂碼問題。
   使用cUser成員為選單命名，防止亂碼。

2.優化了書籤跳轉演算法，使開啟書籤沒有延遲。
   原程式中使用的是for(page = 0; page < gotogage; ++page) nextPage(); 這樣的機制，使得書籤跳轉速度慢,修改為gotoPage( gotopage);。

3.添加了書籤自動排序功能。

   書籤儲存形式為“《檔名》第N...N頁/共N...N頁 yyyy/mm/dd 備註”（其中備註為可選填項）書籤會按照字母順序自動排序，排序優先順序為：檔名>頁面>日期>備註。可以開啟不同檔案。

【使用方法】

1.下載檔案，將Bookmarks.js解壓到Adobe Reader安裝目錄\Reader\Javascripts資料夾下。

2.執行Adobe Reader,選單編輯->首選項->JavaScript->勾選啟用Acrobat JavaScript和啟用選單專案JavaScript執行許可權。

bookmark_page.js

//修改：TOTOP  2011/12/6
//1修改選單中文顯示亂碼
//2優先頁面跳轉的速度
//3書籤自動排序
//http://hi.baidu.com/tlptotop   [email protected]
//SDK 幫助地址：http://livedocs.adobe.com/acrobat_sdk/10/Acrobat10_HTMLHelp

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= '';
    data.sort();
    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, tmp ,s ;
    d = new Date();
    t = d.getFullYear();
    s = t + "/";
    t = (d.getMonth() + 1).toString();
    if(t.length!=2) t = "0" + t;
    s += t + "/";
    t = (d.getDate()).toString();
    if(t.length!=2) t = "0" + t;
    s += t;
    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 numLen = this.numPages.toString().length;
    var numPlugInss=this.pageNum+1;

    while(numPlugInss.toString().length < numLen)
    {
	numPlugInss = "0" + numPlugInss;
    }
    var currentdate=DateNow();
    var label="《"+thisfilename+"》第 "+numPlugInss+" 頁/共 "+this.numPages+" 頁 " + currentdate;

    var cResponse = app.response(
	{ 		
		cQuestion: label, 			
		cTitle: "新增書籤", 			
		cDefault: "無備註", 			
		cLabel: "備註："	
	});

   

   
    if( cResponse!= null )
    {
        var record= new Array(3);
        record[0]= label + "        " + cResponse;
        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
            //
			if(this.path ==  data[index][1])
			{
				this.pageNum =  data[index][2];
			}
			else
			{
				var otherDoc = app.openDoc( data[index][1]);	    
				otherDoc.pageNum = data[index][2];
			}
        }
        catch( ee )
        {
            var response=
                app.alert("開啟書籤錯誤. 是否刪除本書籤?", 2, 2,"刪除書籤");
            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("確認要清除所有的書籤嗎,刪除後將不可恢復?", 2, 2,"刪除書籤" )== 4 )
    {
        SaveData( new Array(0) );
    }
}

app.addMenuItem(
{
cName: "-",              // menu divider
cParent: "View",         // append to the View menu
cExec: "void(0);"
} );

app.addMenuItem(
{
cName: "AddBookmark",
cUser: "設定本頁為書籤(&B)",
cParent: "View",
cExec: "AddBookmark();",
cEnable: "event.rc= (event.target != null);"
} );

app.addMenuItem(
{
cName: "ShowBookmarks",
cUser: "轉到指定書籤(&T)",
cParent: "View",
cExec: "ShowBookmarks();",
cEnable: "event.rc= (event.target != null);"
} );

app.addMenuItem(
{
cName: "DropBookmark",
cUser: "刪除一個書籤(&D)",
cParent: "View",
cExec: "DropBookmark();",
cEnable: "event.rc= (event.target != null);"
} );

app.addMenuItem(
{
cName: "ClearBookmarks",
cUser: "刪除所有書籤(&C)",
cParent: "View",
cExec: "ClearBookmarks();",
cEnable: "event.rc= true;"
} );