open the document to do before:

you can before the Open method call to add a summary of iText development tool which is provided by a choice.

in HTML, the header information is placed on the document header logo in front of the middle, call Open method will lead to flow into the header information, which was opened in the Document can not be changed after the data.

PDF header information does not include a summary of looks similar to:

% PDF-1.2

generated by the bank show that the document is a version 1.2 of the PDF format of the document, in PDF, the summary of the object stored in PdfInfo, when the document has been written into the PdfWriter closed in, so no information on why the library can not be changed to meet at any time to add or change the summary of the technical reasons

u page

Open method Witer different at the same time will have to initialize the incident, for example, if you need a watermark or header page Kok object appears in the document the beginning of the first page, you need to open a document, add of these, the same settings for the other pages of the document watermarks, headers, page corner of pages and size.

When you call the following methods:

public bool setPageSize (Rectangle pageSize)

public bool Add (Watermark watermark)

public void removeWatermark ()

setting Header property

public void resetHeader ()

setting Footer property

public void resetFooter ()

public void resetPageCount ()

setting PageCount property