pdfencryptor.html

IText PDF开发工具说明文档,使用很方便。

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tells you if copying is allowed.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/lowagie/text/pdf/PdfEncryptor.html#isDegradedPrintingAllowed(int)">isDegradedPrintingAllowed</A></B>(int&nbsp;permissions)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tells you if degraded printing is allowed.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/lowagie/text/pdf/PdfEncryptor.html#isFillInAllowed(int)">isFillInAllowed</A></B>(int&nbsp;permissions)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tells you if filling in fields is allowed.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/lowagie/text/pdf/PdfEncryptor.html#isModifyAnnotationsAllowed(int)">isModifyAnnotationsAllowed</A></B>(int&nbsp;permissions)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tells you if modifying annotations is allowed.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/lowagie/text/pdf/PdfEncryptor.html#isModifyContentsAllowed(int)">isModifyContentsAllowed</A></B>(int&nbsp;permissions)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tells you if modifying content is allowed.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/lowagie/text/pdf/PdfEncryptor.html#isPrintingAllowed(int)">isPrintingAllowed</A></B>(int&nbsp;permissions)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tells you if printing is allowed.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/lowagie/text/pdf/PdfEncryptor.html#isScreenReadersAllowed(int)">isScreenReadersAllowed</A></B>(int&nbsp;permissions)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tells you if repurposing for screenreaders is allowed.</TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD>
</TR>
</TABLE>
&nbsp;
<P>

<!-- ========= CONSTRUCTOR DETAIL ======== -->

<A NAME="constructor_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Constructor Detail</B></FONT></TH>
</TR>
</TABLE>

<A NAME="PdfEncryptor()"><!-- --></A><H3>
PdfEncryptor</H3>
<PRE>
private <B>PdfEncryptor</B>()</PRE>
<DL>
</DL>

<!-- ============ METHOD DETAIL ========== -->

<A NAME="method_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Method Detail</B></FONT></TH>
</TR>
</TABLE>

<A NAME="encrypt(com.lowagie.text.pdf.PdfReader, java.io.OutputStream, byte[], byte[], int, boolean)"><!-- --></A><H3>
encrypt</H3>
<PRE>
public static void <B>encrypt</B>(<A HREF="../../../../com/lowagie/text/pdf/PdfReader.html" title="class in com.lowagie.text.pdf">PdfReader</A>&nbsp;reader,
                           <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/OutputStream.html?is-external=true" title="class or interface in java.io">OutputStream</A>&nbsp;os,
                           byte[]&nbsp;userPassword,
                           byte[]&nbsp;ownerPassword,
                           int&nbsp;permissions,
                           boolean&nbsp;strength128Bits)
                    throws <A HREF="../../../../com/lowagie/text/DocumentException.html" title="class in com.lowagie.text">DocumentException</A>,
                           <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>Entry point to encrypt a PDF document. The encryption parameters are the same as in
 <code>PdfWriter</code>. The userPassword and the
  ownerPassword can be null or have zero length. In this case the ownerPassword
  is replaced by a random string. The open permissions for the document can be
  AllowPrinting, AllowModifyContents, AllowCopy, AllowModifyAnnotations,
  AllowFillIn, AllowScreenReaders, AllowAssembly and AllowDegradedPrinting.
  The permissions can be combined by ORing them.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>reader</CODE> - the read PDF<DD><CODE>os</CODE> - the output destination<DD><CODE>userPassword</CODE> - the user password. Can be null or empty<DD><CODE>ownerPassword</CODE> - the owner password. Can be null or empty<DD><CODE>permissions</CODE> - the user permissions<DD><CODE>strength128Bits</CODE> - <code>true</code> for 128 bit key length, <code>false</code> for 40 bit key length
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../com/lowagie/text/DocumentException.html" title="class in com.lowagie.text">DocumentException</A></CODE> - on error
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - on error</DL>
</DD>
</DL>
<HR>

<A NAME="encrypt(com.lowagie.text.pdf.PdfReader, java.io.OutputStream, byte[], byte[], int, boolean, java.util.HashMap)"><!-- --></A><H3>
encrypt</H3>
<PRE>
public static void <B>encrypt</B>(<A HREF="../../../../com/lowagie/text/pdf/PdfReader.html" title="class in com.lowagie.text.pdf">PdfReader</A>&nbsp;reader,
                           <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/OutputStream.html?is-external=true" title="class or interface in java.io">OutputStream</A>&nbsp;os,
                           byte[]&nbsp;userPassword,
                           byte[]&nbsp;ownerPassword,
                           int&nbsp;permissions,
                           boolean&nbsp;strength128Bits,
                           <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/HashMap.html?is-external=true" title="class or interface in java.util">HashMap</A>&nbsp;newInfo)
                    throws <A HREF="../../../../com/lowagie/text/DocumentException.html" title="class in com.lowagie.text">DocumentException</A>,
                           <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>Entry point to encrypt a PDF document. The encryption parameters are the same as in
 <code>PdfWriter</code>. The userPassword and the
  ownerPassword can be null or have zero length. In this case the ownerPassword
  is replaced by a random string. The open permissions for the document can be
  AllowPrinting, AllowModifyContents, AllowCopy, AllowModifyAnnotations,
  AllowFillIn, AllowScreenReaders, AllowAssembly and AllowDegradedPrinting.
  The permissions can be combined by ORing them.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>reader</CODE> - the read PDF<DD><CODE>os</CODE> - the output destination<DD><CODE>userPassword</CODE> - the user password. Can be null or empty<DD><CODE>ownerPassword</CODE> - the owner password. Can be null or empty<DD><CODE>permissions</CODE> - the user permissions<DD><CODE>strength128Bits</CODE> - <code>true</code> for 128 bit key length, <code>false</code> for 40 bit key length<DD><CODE>newInfo</CODE> - an optional <CODE>String</CODE> map to add or change
 the info dictionary. Entries with <CODE>null</CODE>
 values delete the key in the original info dictionary
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../com/lowagie/text/DocumentException.html" title="class in com.lowagie.text">DocumentException</A></CODE> - on error
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - on error</DL>
</DD>
</DL>
<HR>

<A NAME="encrypt(com.lowagie.text.pdf.PdfReader, java.io.OutputStream, boolean, java.lang.String, java.lang.String, int)"><!-- --></A><H3>
encrypt</H3>
<PRE>
public static void <B>encrypt</B>(<A HREF="../../../../com/lowagie/text/pdf/PdfReader.html" title="class in com.lowagie.text.pdf">PdfReader</A>&nbsp;reader,
                           <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/OutputStream.html?is-external=true" title="class or interface in java.io">OutputStream</A>&nbsp;os,
                           boolean&nbsp;strength,
                           <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;userPassword,
                           <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;ownerPassword,
                           int&nbsp;permissions)
                    throws <A HREF="../../../../com/lowagie/text/DocumentException.html" title="class in com.lowagie.text">DocumentException</A>,
                           <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>Entry point to encrypt a PDF document. The encryption parameters are the same as in
 <code>PdfWriter</code>. The userPassword and the
  ownerPassword can be null or have zero length. In this case the ownerPassword
  is replaced by a random string. The open permissions for the document can be
  AllowPrinting, AllowModifyContents, AllowCopy, AllowModifyAnnotations,
  AllowFillIn, AllowScreenReaders, AllowAssembly and AllowDegradedPrinting.
  The permissions can be combined by ORing them.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>reader</CODE> - the read PDF<DD><CODE>os</CODE> - the output destination<DD><CODE>strength</CODE> - <code>true</code> for 128 bit key length, <code>false</code> for 40 bit key length<DD><CODE>userPassword</CODE> - the user password. Can be null or empty<DD><CODE>ownerPassword</CODE> - the owner password. Can be null or empty<DD><CODE>permissions</CODE> - the user permissions
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../com/lowagie/text/DocumentException.html" title="class in com.lowagie.text">DocumentException</A></CODE> - on error
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - on error</DL>
</DD>
</DL>
<HR>

<A NAME="encrypt(com.lowagie.text.pdf.PdfReader, java.io.OutputStream, boolean, java.lang.String, java.lang.String, int, java.util.HashMap)"><!-- --></A><H3>
encrypt</H3>
<PRE>
public static void <B>encrypt</B>(<A HREF="../../../../com/lowagie/text/pdf/PdfReader.html" title="class in com.lowagie.text.pdf">PdfReader</A>&nbsp;reader,
                           <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/OutputStream.html?is-external=true" title="class or interface in java.io">OutputStream</A>&nbsp;os,
                           boolean&nbsp;strength,
                           <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;userPassword,
                           <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;ownerPassword,
                           int&nbsp;permissions,
                           <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/HashMap.html?is-external=true" title="class or interface in java.util">HashMap</A>&nbsp;newInfo)
                    throws <A HREF="../../../../com/lowagie/text/DocumentException.html" title="class in com.lowagie.text">DocumentException</A>,
                           <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>Entry point to encrypt a PDF document. The encryption parameters are the same as in
 <code>PdfWriter</code>. The userPassword and the
  ownerPassword can be null or have zero length. In this case the ownerPassword
  is replaced by a random string. The open permissions for the document can be
  AllowPrinting, AllowModifyContents, AllowCopy, AllowModifyAnnotations,
  AllowFillIn, AllowScreenReaders, AllowAssembly and AllowDegradedPrinting.
  The permissions can be combined by ORing them.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>reader</CODE> - the read PDF<DD><CODE>os</CODE> - the output destination<DD><CODE>strength</CODE> - <code>true</code> for 128 bit key length, <code>false</code> for 40 bit key length<DD><CODE>userPassword</CODE> - the user password. Can be null or empty<DD><CODE>ownerPassword</CODE> - the owner password. Can be null or empty<DD><CODE>permissions</CODE> - the user permissions<DD><CODE>newInfo</CODE> - an optional <CODE>String</CODE> map to add or change
 the info dictionary. Entries with <CODE>null</CODE>
 values delete the key in the original info dictionary
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../com/lowagie/text/DocumentException.html" title="class in com.lowagie.text">DocumentException</A></CODE> - on error
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - on error</DL>
</DD>
</DL>
<HR>

<A NAME="encrypt(com.lowagie.text.pdf.PdfReader, java.io.OutputStream, int, java.lang.String, java.lang.String, int, java.util.HashMap)"><!-- --></A><H3>
encrypt</H3>
<PRE>
public static void <B>encrypt</B>(<A HREF="../../../../com/lowagie/text/pdf/PdfReader.html" title="class in com.lowagie.text.pdf">PdfReader</A>&nbsp;reader,
                           <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/OutputStream.html?is-external=true" title="class or interface in java.io">OutputStream</A>&nbsp;os,
                           int&nbsp;type,
                           <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;userPassword,
                           <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;ownerPassword,
                           int&nbsp;permissions,
                           <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/HashMap.html?is-external=true" title="class or interface in java.util">HashMap</A>&nbsp;newInfo)
                    throws <A HREF="../../../../com/lowagie/text/DocumentException.html" title="class in com.lowagie.text">DocumentException</A>,
                           <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>Entry point to encrypt a PDF document. The encryption parameters are the same as in
 <code>PdfWriter</code>. The userPassword and the
  ownerPassword can be null or have zero length. In this case the ownerPassword
  is replaced by a random string. The open permissions for the document can be
  AllowPrinting, AllowModifyContents, AllowCopy, AllowModifyAnnotations,
  AllowFillIn, AllowScreenReaders, AllowAssembly and AllowDegradedPrinting.
  The permissions can be combined by ORing them.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>reader</CODE> - the read PDF<DD><CODE>os</CODE> - the output destination<DD><CODE>type</CODE> - the type of encryption. It can be one of STANDARD_ENCRYPTION_40, STANDARD_ENCRYPTION_128 or ENCRYPTION_AES128.
 Optionally DO_NOT_ENCRYPT_METADATA can be ored to output the metadata in cleartext<DD><CODE>userPassword</CODE> - the user password. Can be null or empty<DD><CODE>ownerPassword</CODE> - the owner password. Can be null or empty<DD><CODE>permissions</CODE> - the user permissions<DD><CODE>newInfo</CODE> - an optional <CODE>String</CODE> map to add or change
 the info dictionary. Entries with <CODE>null</CODE>
 values delete the key in the original info dictionary
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../com/lowagie/text/DocumentException.html" title="class in com.lowagie.text">DocumentException</A></CODE> - on error
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - on error</DL>