} // func OpenPage
/// <summary>Get size of this page.</summary>
/// <param name="pageNumber">Page number, zero indexed.</param>
/// <returns>Size of the page in page units.</returns>
public Size GetPageSize(int pageNumber)
{
CheckPageNumber(pageNumber);
lock (FPDF_LibraryLock)
{
if (FPDF_GetPageSizeByIndex(documentHandle.DangerousGetHandle(), pageNumber, out var width, out var height) == 0)
{
throw PdfReaderException.Create(pdfName);
}
return(new Size(width, height));
}
} // func GetPageSize
} // proc SetPrintTextWithGDI
#region -- Open ---------------------------------------------------------------
/// <summary>Open a pdf-file</summary>
/// <param name="fileName">Filename</param>
/// <param name="password">Password of the pdf</param>
/// <returns>Pdf document reader</returns>
public static PdfReader Open(string fileName, SecureString password = null)
{
if (String.IsNullOrEmpty(fileName))
{
throw new ArgumentNullException(nameof(fileName));
}
lock (FPDF_LibraryLock)
{
var documentHandle = new PdfDocumentHandle(FPDF_LoadDocument(fileName, IntPtr.Zero));
if (documentHandle.IsInvalid)
{
throw PdfReaderException.Create(fileName);
}
return(new PdfReader(documentHandle, fileName, null));
}
} // func Open
private PdfReader(PdfDocumentHandle documentHandle, string pdfName, IDisposable dispose)
{
this.documentHandle = documentHandle ?? throw new ArgumentNullException(nameof(documentHandle));
this.pdfName = pdfName ?? "unknown.pdf";
this.dispose = dispose;
Properties = new PdfProperties(this);
// read pdf version
if (!FPDF_GetFileVersion(documentHandle.DangerousGetHandle(), out var tmp))
{
throw PdfReaderException.Create(pdfName);
}
pdfVersion = new Version(tmp / 10, tmp % 10);
// read page count
pageCount = FPDF_GetPageCount(documentHandle.DangerousGetHandle());
if (pageCount < 0)
{
throw PdfReaderException.Create(pdfName);
}
} // ctor
