/**
* Add an imported page to our output
* @param iPage an imported page
* @throws IOException, BadPdfFormatException
*/
public void AddPage(PdfImportedPage iPage)
{
int pageNum = SetFromIPage(iPage);
PdfDictionary thePage = reader.GetPageN(pageNum);
PRIndirectReference origRef = reader.GetPageOrigRef(pageNum);
reader.ReleasePage(pageNum);
RefKey key = new RefKey(origRef);
PdfIndirectReference pageRef;
IndirectReferences iRef = (IndirectReferences)indirects[key];
if (iRef != null && !iRef.Copied)
{
pageReferences.Add(iRef.Ref);
iRef.SetCopied();
}
pageRef = CurrentPage;
if (iRef == null)
{
iRef = new IndirectReferences(pageRef);
indirects[key] = iRef;
}
iRef.SetCopied();
PdfDictionary newPage = CopyDictionary(thePage);
root.AddPage(newPage);
++currentPageNumber;
}
/**
* Create a page stamp. New content and annotations, including new fields, are allowed.
* The fields added cannot have parents in another pages. This method modifies the PdfReader instance.<p>
* The general usage to stamp something in a page is:
* <p>
* <pre>
* PdfImportedPage page = copy.getImportedPage(reader, 1);
* PdfCopy.PageStamp ps = copy.createPageStamp(page);
* ps.addAnnotation(PdfAnnotation.createText(copy, new Rectangle(50, 180, 70, 200), "Hello", "No Thanks", true, "Comment"));
* PdfContentByte under = ps.getUnderContent();
* under.addImage(img);
* PdfContentByte over = ps.getOverContent();
* over.beginText();
* over.setFontAndSize(bf, 18);
* over.setTextMatrix(30, 30);
* over.showText("total page " + totalPage);
* over.endText();
* ps.alterContents();
* copy.addPage(page);
* </pre>
* @param iPage an imported page
* @return the <CODE>PageStamp</CODE>
*/
public PageStamp CreatePageStamp(PdfImportedPage iPage)
{
int pageNum = iPage.PageNumber;
PdfReader reader = iPage.PdfReaderInstance.Reader;
PdfDictionary pageN = reader.GetPageN(pageNum);
return(new PageStamp(reader, pageN, this));
}
/**
* convenience method. Given an importedpage, set our "globals"
*/
protected int SetFromIPage(PdfImportedPage iPage)
{
int pageNum = iPage.PageNumber;
PdfReaderInstance inst = currentPdfReaderInstance = iPage.PdfReaderInstance;
reader = inst.Reader;
SetFromReader(reader);
return(pageNum);
}
/**
* Gets the content stream of a page as a PdfStream object.
* @param pageNumber the page of which you want the stream
* @param compressionLevel the compression level you want to apply to the stream
* @return a PdfStream object
* @since 2.1.3 (the method already existed without param compressionLevel)
*/
internal PdfStream GetFormXObject(int pageNumber, int compressionLevel)
{
PdfDictionary page = reader.GetPageNRelease(pageNumber);
PdfObject contents = PdfReader.GetPdfObjectRelease(page.Get(PdfName.CONTENTS));
PdfDictionary dic = new PdfDictionary();
byte[] bout = null;
if (contents != null)
{
if (contents.IsStream())
{
dic.Merge((PRStream)contents);
}
else
{
bout = reader.GetPageContent(pageNumber, file);
}
}
else
{
bout = new byte[0];
}
dic.Put(PdfName.RESOURCES, PdfReader.GetPdfObjectRelease(page.Get(PdfName.RESOURCES)));
dic.Put(PdfName.TYPE, PdfName.XOBJECT);
dic.Put(PdfName.SUBTYPE, PdfName.FORM);
PdfImportedPage impPage = (PdfImportedPage)importedPages[pageNumber];
dic.Put(PdfName.BBOX, new PdfRectangle(impPage.BoundingBox));
PdfArray matrix = impPage.Matrix;
if (matrix == null)
{
dic.Put(PdfName.MATRIX, IDENTITYMATRIX);
}
else
{
dic.Put(PdfName.MATRIX, matrix);
}
dic.Put(PdfName.FORMTYPE, ONE);
PRStream stream;
if (bout == null)
{
stream = new PRStream((PRStream)contents, dic);
}
else
{
stream = new PRStream(reader, bout);
stream.Merge(dic);
}
return(stream);
}
internal PdfImportedPage GetImportedPage(int pageNumber)
{
if (!reader.IsOpenedWithFullPermissions)
{
throw new ArgumentException("PdfReader not opened with owner password");
}
if (pageNumber < 1 || pageNumber > reader.NumberOfPages)
{
throw new ArgumentException("Invalid page number: " + pageNumber);
}
PdfImportedPage pageT = (PdfImportedPage)importedPages[pageNumber];
if (pageT == null)
{
pageT = new PdfImportedPage(this, writer, pageNumber);
importedPages[pageNumber] = pageT;
}
return(pageT);
}
/**
* convenience method. Given an importedpage, set our "globals"
*/
protected int SetFromIPage(PdfImportedPage iPage)
{
int pageNum = iPage.PageNumber;
PdfReaderInstance inst = currentPdfReaderInstance = iPage.PdfReaderInstance;
reader = inst.Reader;
SetFromReader(reader);
return pageNum;
}
/**
* Create a page stamp. New content and annotations, including new fields, are allowed.
* The fields added cannot have parents in another pages. This method modifies the PdfReader instance.<p>
* The general usage to stamp something in a page is:
* <p>
* <pre>
* PdfImportedPage page = copy.getImportedPage(reader, 1);
* PdfCopy.PageStamp ps = copy.createPageStamp(page);
* ps.addAnnotation(PdfAnnotation.createText(copy, new Rectangle(50, 180, 70, 200), "Hello", "No Thanks", true, "Comment"));
* PdfContentByte under = ps.getUnderContent();
* under.addImage(img);
* PdfContentByte over = ps.getOverContent();
* over.beginText();
* over.setFontAndSize(bf, 18);
* over.setTextMatrix(30, 30);
* over.showText("total page " + totalPage);
* over.endText();
* ps.alterContents();
* copy.addPage(page);
* </pre>
* @param iPage an imported page
* @return the <CODE>PageStamp</CODE>
*/
public PageStamp CreatePageStamp(PdfImportedPage iPage)
{
int pageNum = iPage.PageNumber;
PdfReader reader = iPage.PdfReaderInstance.Reader;
PdfDictionary pageN = reader.GetPageN(pageNum);
return new PageStamp(reader, pageN, this);
}
/**
* Add an imported page to our output
* @param iPage an imported page
* @throws IOException, BadPdfFormatException
*/
public void AddPage(PdfImportedPage iPage)
{
int pageNum = SetFromIPage(iPage);
PdfDictionary thePage = reader.GetPageN(pageNum);
PRIndirectReference origRef = reader.GetPageOrigRef(pageNum);
reader.ReleasePage(pageNum);
RefKey key = new RefKey(origRef);
PdfIndirectReference pageRef;
IndirectReferences iRef = (IndirectReferences)indirects[key] ;
if (iRef != null && !iRef.Copied) {
pageReferences.Add(iRef.Ref);
iRef.SetCopied();
}
pageRef = CurrentPage;
if (iRef == null) {
iRef = new IndirectReferences(pageRef);
indirects[key] = iRef;
}
iRef.SetCopied();
PdfDictionary newPage = CopyDictionary(thePage);
root.AddPage(newPage);
++currentPageNumber;
}
internal PdfImportedPage GetImportedPage(int pageNumber)
{
if (!reader.IsOpenedWithFullPermissions)
throw new ArgumentException("PdfReader not opened with owner password");
if (pageNumber < 1 || pageNumber > reader.NumberOfPages)
throw new ArgumentException("Invalid page number: " + pageNumber);
PdfImportedPage pageT = (PdfImportedPage)importedPages[pageNumber];
if (pageT == null) {
pageT = new PdfImportedPage(this, writer, pageNumber);
importedPages[pageNumber] = pageT;
}
return pageT;
}
