public void SetPageCropBox(int index, float left, float right, float top, float bottom)
{
IntPtr pageHandle = PdfiumDLL.FPDF_LoadPage(documentHandle, index);
PdfiumDLL.FPDFPage_SetCropBox(pageHandle, left, bottom, right, top);
PdfiumDLL.FPDF_ClosePage(pageHandle);
}
public void SaveCopy(string path) // TODO: must not match path of open document
{
using (var stream = new FileStream(path, FileMode.Create))
{
var callbackStreamer = new CallbackStreamer(stream);
PdfiumDLL.FPDF_SaveAsCopy(documentHandle, ref callbackStreamer, 0);
}
}
protected virtual void Dispose(bool disposing)
{
if (!isDisposed)
{
PdfiumDLL.FPDF_CloseDocument(documentHandle);
}
isDisposed = true;
}
public PageRectangle GetPageCropBox(int index)
{
var rect = new PageRectangle();
IntPtr pageHandle = PdfiumDLL.FPDF_LoadPage(documentHandle, index);
PdfiumDLL.FPDFPage_GetCropBox(pageHandle, out rect.left, out rect.bottom, out rect.right, out rect.top);
PdfiumDLL.FPDF_ClosePage(pageHandle);
return(rect);
}
protected byte[] GetPagePixelsInternal(byte[] buffer, int pageIndex, int width, int height, float dpiX, float dpiY, bool forPrinting)
{
IntPtr bitmapHandle;
bitmapHandle = PdfiumDLL.FPDFBitmap_CreateEx(width, height, 4, buffer, width * 4);
PdfiumDLL.FPDFBitmap_FillRect(bitmapHandle, 0, 0, width, height, new FPDFColor(0xFFFFFFFF));
IntPtr pageHandle = PdfiumDLL.FPDF_LoadPage(documentHandle, pageIndex);
PdfiumDLL.FPDF_RenderPageBitmap(bitmapHandle, pageHandle, 0, 0, width, height, 0, 0);
PdfiumDLL.FPDF_ClosePage(pageHandle);
PdfiumDLL.FPDFBitmap_Destroy(bitmapHandle);
return(buffer);
}
protected void LoadDocumentInfo()
{
int pageCount = PdfiumDLL.FPDF_GetPageCount(documentHandle);
pageSizes = new List <Size>(pageCount);
double width;
double height;
for (int i = 0; i < pageCount; ++i)
{
PdfiumDLL.FPDF_GetPageSizeByIndex(documentHandle, i, out width, out height);
pageSizes.Add(new Size()
{
Width = width, Height = height
});
PageSizes = pageSizes.AsReadOnly() as IList <Size>;
}
}
public Bitmap GetPageImage(int pageIndex, int width, int height, float dpiX, float dpiY, bool forPrinting)
{
var bitmap = new Bitmap(width, height, System.Drawing.Imaging.PixelFormat.Format32bppPArgb);
BitmapData bitmapData = bitmap.LockBits(
new Rectangle(0, 0, width, height), ImageLockMode.ReadWrite, bitmap.PixelFormat);
IntPtr bitmapHandle = PdfiumDLL.FPDFBitmap_CreateEx(width, height, 4, bitmapData.Scan0, width * 4);
PdfiumDLL.FPDFBitmap_FillRect(bitmapHandle, 0, 0, width, height, new FPDFColor(0xFFFFFFFF));
IntPtr pageHandle = PdfiumDLL.FPDF_LoadPage(documentHandle, pageIndex);
PdfiumDLL.FPDF_RenderPageBitmap(bitmapHandle, pageHandle, 0, 0, width, height, 0, 0);
PdfiumDLL.FPDF_ClosePage(pageHandle);
bitmap.UnlockBits(bitmapData);
PdfiumDLL.FPDFBitmap_Destroy(bitmapHandle);
return(bitmap);
}
public PdfDocument(string filePath)
{
PdfiumDLL.EnsureIsInitialized();
documentHandle = PdfiumDLL.FPDF_LoadDocument(filePath, null);
LoadDocumentInfo();
}
