internal PdfSignatureAppearance(PdfStamperImp writer)
{
this.writer = writer;
signDate = DateTime.Now;
fieldName = GetNewSigName();
}
internal static void MergeResources(PdfDictionary result, PdfDictionary source, PdfStamperImp writer)
{
PdfDictionary dic = null;
PdfDictionary res = null;
PdfName target = null;
for (int k = 0; k < mergeTarget.Length; ++k) {
target = mergeTarget[k];
PdfDictionary pdfDict = source.GetAsDict(target);
if ((dic = pdfDict) != null) {
if ((res = (PdfDictionary)PdfReader.GetPdfObject(result.Get(target), result)) == null) {
res = new PdfDictionary();
}
res.MergeDifferent(dic);
result.Put(target, res);
if (writer != null)
writer.MarkUsed(res);
}
}
}
internal PageStamp(PdfStamperImp stamper, PdfReader reader, PdfDictionary pageN)
{
this.pageN = pageN;
pageResources = new PageResources();
PdfDictionary resources = pageN.GetAsDict(PdfName.RESOURCES);
pageResources.SetOriginalResources(resources, stamper.namePtr);
}
/** Starts the process of adding extra content to an existing PDF
* document.
* @param reader the original document. It cannot be reused
* @param os the output stream
* @throws DocumentException on error
* @throws IOException on error
*/
public PdfStamper(PdfReader reader, Stream os)
{
stamper = new PdfStamperImp(reader, os, '\0', false);
}
/**
* Starts the process of adding extra content to an existing PDF
* document, possibly as a new revision.
* @param reader the original document. It cannot be reused
* @param os the output stream
* @param pdfVersion the new pdf version or '\0' to keep the same version as the original
* document
* @param append if <CODE>true</CODE> appends the document changes as a new revision. This is
* only useful for multiple signatures as nothing is gained in speed or memory
* @throws DocumentException on error
* @throws IOException on error
*/
public PdfStamper(PdfReader reader, Stream os, char pdfVersion, bool append)
{
stamper = new PdfStamperImp(reader, os, pdfVersion, append);
}
/**
* Starts the process of adding extra content to an existing PDF
* document.
* @param reader the original document. It cannot be reused
* @param os the output stream
* @param pdfVersion the new pdf version or '\0' to keep the same version as the original
* document
* @throws DocumentException on error
* @throws IOException on error
*/
public PdfStamper(PdfReader reader, Stream os, char pdfVersion)
{
stamper = new PdfStamperImp(reader, os, pdfVersion, false);
}
/** Creates a new instance of StampContent */
internal StampContent(PdfStamperImp stamper, PdfStamperImp.PageStamp ps)
: base(stamper)
{
this.ps = ps;
pageResources = ps.pageResources;
}
