} // End Sub CropPdf2
static void CropPdf3(double page_width, double page_height)
{
string fn = @"D:\username\Desktop\0001 Altstetten - GB01 H602 - OG14.pdf";
// fn = @"D:\username\Desktop\0030 Sentimatt - GB01 Sentimatt - EG00.pdf";
fn = @"D:\username\Desktop\Altstetten_1_50.pdf";
// The current implementation of PDFsharp has only one layout of the graphics context.
// The origin(0, 0) is top left and coordinates grow right and down.
// The unit of measure is always point (1 / 72 inch).
// 1 pt = 0,0352778 cm
// 1 pt = 0,352778 mm
// 1 inch = 2,54 cm
// 1/72 inch to cm = 0,035277777777777776 cm
// A0:
// w: 2384 pt = 84,10222 cm
// h: 3370 pt = 118,8861 cm
// A3:
// w: 842 pt = 29,7039 cm
// h: 1191 pt = 42,01583 cm
// A4:
// 595 pt to cm = 20,9903 w
// 842 pt to cm = 29,7039 h
// A0
page_width = 2384;
page_height = 3370;
// A3
page_width = 842;
page_height = 1191;
// A4
page_width = 595;
page_height = 842;
PdfMargin margin = new PdfMargin(mm2pt(10)); // 1cm in pt
double crop_width = page_width - margin.Left - margin.Right;
double crop_height = page_height - margin.Top - margin.Bottom;
using (PdfSharp.Drawing.XPdfForm sourceForm = PdfSharp.Drawing.XPdfForm.FromFile(fn))
{
sourceForm.PageNumber = 1;
int numHori = (int)System.Math.Ceiling(sourceForm.Page.Width.Point / crop_width);
int numVerti = (int)System.Math.Ceiling(sourceForm.Page.Height.Point / crop_height);
PdfSharp.Drawing.XRect pageDimenstions = new PdfSharp.Drawing.XRect(0, 0, sourceForm.Page.Width, sourceForm.Page.Height);
using (PdfSharp.Pdf.PdfDocument destDocument = new PdfSharp.Pdf.PdfDocument())
{
for (int iverti = 0; iverti < numVerti; iverti++)
{
for (int ihori = 0; ihori < numHori; ihori++)
{
PdfSharp.Pdf.PdfPage destPage = destDocument.AddPage();
destPage.Width = crop_width;
destPage.Height = crop_height;
PdfSharp.Drawing.XRect cropRect = new PdfSharp.Drawing.XRect(ihori * crop_width, iverti * crop_height, sourceForm.Page.Width, sourceForm.Page.Height);
using (PdfSharp.Drawing.XGraphics destGFX = PdfSharp.Drawing.XGraphics.FromPdfPage(destPage))
{
destGFX.DrawImageCropped(sourceForm, cropRect, pageDimenstions, PdfSharp.Drawing.XGraphicsUnit.Point);
} // End Using destGFX
} // ihori
} // iverti
// destDocument.Save("chopped.pdf");
using (System.IO.MemoryStream ms = new System.IO.MemoryStream())
{
destDocument.Save(ms);
ms.Position = 0;
using (PdfSharp.Drawing.XPdfForm croppedImages = PdfSharp.Drawing.XPdfForm.FromStream(ms))
{
using (PdfSharp.Pdf.PdfDocument finalDestination = new PdfSharp.Pdf.PdfDocument())
{
PdfSharp.Drawing.XFont font = new PdfSharp.Drawing.XFont("Arial", 8);
for (int i = 0; i < croppedImages.PageCount; ++i)
{
PdfSharp.Pdf.PdfPage targetPage = finalDestination.AddPage();
targetPage.Width = page_width;
targetPage.Height = page_height;
PdfSharp.Drawing.XRect pageSize = new PdfSharp.Drawing.XRect(0, 0, targetPage.Width, targetPage.Height);
try
{
croppedImages.PageIndex = i;
using (PdfSharp.Drawing.XGraphics targetGFX = PdfSharp.Drawing.XGraphics.FromPdfPage(targetPage))
{
#if DEBUG_ME
targetGFX.DrawRectangle(XBrushes.Honeydew, pageSize);
#endif
PdfSharp.Drawing.XRect targetRect = new PdfSharp.Drawing.XRect(margin.Left, margin.Top, crop_width, crop_height);
targetGFX.DrawImage(croppedImages, targetRect, targetRect, PdfSharp.Drawing.XGraphicsUnit.Point);
DrawBorder(targetGFX, targetPage.Width.Point, targetPage.Height.Point, margin);
DrawCrosshairs(targetGFX, targetPage.Width.Point, targetPage.Height.Point, margin);
// int numHori = (int)System.Math.Ceiling(sourceForm.Page.Width / crop_width);
// int numVerti = (int)System.Math.Ceiling(sourceForm.Page.Height / crop_height);
int col = i % numHori;
int row = i / numHori;
// targetGFX.DrawString($"Column {col + 1}/{numHori} Row {row + 1}/{numVerti}, Page {i + 1}/{croppedImages.PageCount}", font, PdfSharp.Drawing.XBrushes.Black, margin.Left + 5, targetPage.Height.Point - margin.Bottom + font.Size + 5);
targetGFX.DrawString($"Spalte {col + 1}/{numHori} Zeile {row + 1}/{numVerti}, Seite {i + 1}/{croppedImages.PageCount}", font, PdfSharp.Drawing.XBrushes.Black, margin.Left + 5, targetPage.Height.Point - margin.Bottom + font.Size + 5);
} // End using targetGFX
}
catch (System.Exception ex)
{
System.Console.WriteLine(croppedImages.PageIndex);
System.Console.WriteLine(ex.Message);
}
} // Next i
finalDestination.Save("CropPdf3.pdf");
} // End Using finalDestination
} // End Using croppedImages
} // End Using ms
} // End Using destDocument
} // End Using sourceForm
} // End Sub CropPdf3
public static void DrawCrossBottomRight(PdfSharp.Drawing.XGraphics gfx, double width, double height, PdfMargin margin, double halfPenWidth, PdfSharp.Drawing.XPen[] pens)
{
double x1 = width - margin.Right;
double y1 = height - margin.Bottom + halfPenWidth;
double x2 = width;
double y2 = height - margin.Bottom + halfPenWidth;
gfx.DrawLine(pens[0], x1, y1, x2, y2); // Horizontal - Yellow
x1 = width - margin.Right + halfPenWidth;
y1 = height - margin.Bottom;
x2 = width - margin.Right + halfPenWidth;
y2 = height;
gfx.DrawLine(pens[1], x1, y1, x2, y2); // Vertical - red
}
public static void DrawCrosshairs(PdfSharp.Drawing.XGraphics gfx, double width, double height, PdfMargin margin)
{
PdfSharp.Drawing.XPen[] pens = new PdfSharp.Drawing.XPen[] { PdfSharp.Drawing.XPens.Black, PdfSharp.Drawing.XPens.Black };
// pens = new PdfSharp.Drawing.XPen[] { PdfSharp.Drawing.XPens.Yellow, PdfSharp.Drawing.XPens.Red };
double halfPenWidth = pens[0].Width / 2.0;
DrawCrossTopLeft(gfx, width, height, margin, halfPenWidth, pens);
DrawCrossTopRight(gfx, width, height, margin, halfPenWidth, pens);
DrawCrossBottomLeft(gfx, width, height, margin, halfPenWidth, pens);
DrawCrossBottomRight(gfx, width, height, margin, halfPenWidth, pens);
}
public static void DrawCrossTopLeft(PdfSharp.Drawing.XGraphics gfx, double width, double height, PdfMargin margin, double halfPenWidth, PdfSharp.Drawing.XPen[] pens)
{
double x1 = 0;
double y1 = margin.Top - halfPenWidth;
double x2 = margin.Left;
double y2 = margin.Top - halfPenWidth;
gfx.DrawLine(pens[0], x1, y1, x2, y2); // Horizontal - Yellow
x1 = margin.Left - halfPenWidth;
y1 = 0;
x2 = margin.Left - halfPenWidth;
y2 = margin.Top;
gfx.DrawLine(pens[1], x1, y1, x2, y2); // Vertical - Red
}
public static void DrawBorder(PdfSharp.Drawing.XGraphics gfx, double width, double height, PdfMargin margin)
{
PdfSharp.Drawing.XPen[] pens = new PdfSharp.Drawing.XPen[] { PdfSharp.Drawing.XPens.Black, PdfSharp.Drawing.XPens.Black, PdfSharp.Drawing.XPens.Black, PdfSharp.Drawing.XPens.Black };
// pens = new PdfSharp.Drawing.XPen[] { PdfSharp.Drawing.XPens.Yellow, PdfSharp.Drawing.XPens.HotPink, PdfSharp.Drawing.XPens.Blue, PdfSharp.Drawing.XPens.Green };
double halfPenWidth = pens[0].Width / 2.0;
double x1 = 0;
double y1 = margin.Top - halfPenWidth;
double x2 = width;
double y2 = margin.Top - halfPenWidth;
gfx.DrawLine(pens[0], x1, y1, x2, y2); // Horizontal Top - Yellow
// y1 = height-pageMargin;
x1 = 0;
y1 = height - margin.Bottom + halfPenWidth;
x2 = width; // 1/4 + 1/8 ()*0.5= 3/16
y2 = height - margin.Bottom + halfPenWidth;
gfx.DrawLine(pens[1], x1, y1, x2, y2); // Horizontal Bottom - Hotpink
x1 = margin.Left - halfPenWidth;
y1 = 0;
x2 = margin.Left - halfPenWidth;
y2 = height;
gfx.DrawLine(pens[2], x1, y1, x2, y2); // Vertical Left - Blue
x1 = width - margin.Right + halfPenWidth;
y1 = 0;
x2 = width - margin.Right + halfPenWidth;
y2 = height;
gfx.DrawLine(pens[3], x1, y1, x2, y2); // Vertical Right - Green
}
