public override void Run(
)
{
// 1. Opening the PDF file...
string filePath = PromptFileChoice("Please select a PDF file");
using(File file = new File(filePath))
{
Document document = file.Document;
PageStamper stamper = new PageStamper(); // NOTE: Page stamper is used to draw contents on existing pages.
// 2. Iterating through the document pages...
foreach(Page page in document.Pages)
{
Console.WriteLine("\nScanning page " + (page.Index+1) + "...\n");
stamper.Page = page;
Extract(
new ContentScanner(page), // Wraps the page contents into a scanner.
stamper.Foreground
);
stamper.Flush();
}
// 3. Decorated version serialization.
Serialize(file);
}
}
private void Stamp(
Document document
)
{
// 1. Instantiate the stamper!
/* NOTE: The PageStamper is optimized for dealing with pages. */
PageStamper stamper = new PageStamper();
// 2. Numbering each page...
StandardType1Font font = new StandardType1Font(
document,
StandardType1Font.FamilyEnum.Courier,
true,
false
);
DeviceRGBColor redColor = DeviceRGBColor.Get(System.Drawing.Color.Red);
int margin = 32;
foreach(Page page in document.Pages)
{
// 2.1. Associate the page to the stamper!
stamper.Page = page;
// 2.2. Stamping the page number on the foreground...
{
PrimitiveComposer foreground = stamper.Foreground;
foreground.SetFont(font,16);
foreground.SetFillColor(redColor);
SizeF pageSize = page.Size;
int pageNumber = page.Index + 1;
bool pageIsEven = (pageNumber % 2 == 0);
foreground.ShowText(
pageNumber.ToString(),
new PointF(
(pageIsEven
? margin
: pageSize.Width - margin),
pageSize.Height - margin
),
(pageIsEven
? XAlignmentEnum.Left
: XAlignmentEnum.Right),
YAlignmentEnum.Bottom,
0
);
}
// 2.3. End the stamping!
stamper.Flush();
}
}
private void ApplyWatermark(
FormXObject watermark
)
{
// 1. Instantiate the stamper!
/* NOTE: The PageStamper is optimized for dealing with pages. */
PageStamper stamper = new PageStamper();
// 2. Inserting the watermark into each page of the document...
foreach(Page page in watermark.Document.Pages)
{
// 2.1. Associate the page to the stamper!
stamper.Page = page;
// 2.2. Stamping the watermark on the foreground...
// Get the content composer!
PrimitiveComposer composer = stamper.Foreground;
// Show the watermark into the page background!
composer.ShowXObject(watermark);
// 2.3. End the stamping!
stamper.Flush();
}
}
public static void Main(string[] args)
{
if (args.Length != 3) {
Console.WriteLine ("Usage: NbTest <background.pdf> <text> <output.pdf>");
return;
}
if (!File.Exists (args [0])) {
Console.Error.WriteLine ("Invalid text filename, it doesn't exist.");
return;
}
string text = args [1];
PDFFiles.File file = new PDFFiles.File (args [0]);
Document document = file.Document;
PageStamper stamper = new PageStamper (document.Pages [0]);
PrimitiveComposer composer = stamper.Foreground;
PDFFonts.Font font = PDFFonts.Font.Get (document, FONT_NAME);
if (document.Layer == null) {
document.Layer = new LayerDefinition (document);
}
document.PageMode = Document.PageModeEnum.Layers;
Layer layer = new Layer(document, "Personalization");
document.Layer.Layers.Add(layer);
var margin = new RectangleF(MilimitersToPoints(2), MilimitersToPoints(1),
MilimitersToPoints(6), MilimitersToPoints(1));
//var frame = new RectangleF(MilimitersToPoints(0), MilimitersToPoints(179),
// MilimitersToPoints(255), MilimitersToPoints(26));
var frame = new RectangleF(MilimitersToPoints(105), MilimitersToPoints(155),
MilimitersToPoints(100), MilimitersToPoints(26));
var text_frame = new RectangleF(frame.X + margin.X,
frame.Y + margin.Y,
frame.Width - margin.Right,
frame.Height - margin.Bottom);
int font_size = GetFontSizeToFit(text, text_frame);
composer.BeginLayer(layer);
//composer.Rotate(90, new PointF(0, MilimitersToPoints(255)));
composer.SetFillColor(new DeviceRGBColor(86f/255,175f/255,49f/255));
composer.DrawRectangle(frame);
composer.Fill();
composer.SetFillColor(DeviceRGBColor.White);
composer.SetFont(font, font_size);
BlockComposer blockComposer = new BlockComposer(composer);
blockComposer.Begin(text_frame, AlignmentXEnum.Center, AlignmentYEnum.Middle);
blockComposer.ShowText(text);
blockComposer.End();
composer.End();
stamper.Flush();
file.Save(args [2], PDFFiles.SerializationModeEnum.Standard);
file.Dispose();
}
/**
* <summary>Replaces the Acroform fields with their corresponding graphics representation.</summary>
* <param name="document">Document to flatten.</param>
*/
public void Flatten(
Document document
)
{
Dictionary <Page, PageStamper> pageStampers = new Dictionary <Page, PageStamper>();
Form form = document.Form;
Fields formFields = form.Fields;
foreach (Field field in formFields.Values)
{
foreach (Widget widget in field.Widgets)
{
Page widgetPage = widget.Page;
Annotation.FlagsEnum flags = widget.Flags;
// Is the widget to be rendered?
if (((flags & Annotation.FlagsEnum.Hidden) == 0 || hiddenRendered) &&
((flags & Annotation.FlagsEnum.Print) > 0 || nonPrintableRendered))
{
// Stamping the current state appearance of the widget...
PdfName widgetCurrentState = (PdfName)widget.BaseDataObject[PdfName.AS];
FormXObject widgetCurrentAppearance = widget.Appearance.Normal[widgetCurrentState];
if (widgetCurrentAppearance != null)
{
PageStamper widgetStamper;
if (!pageStampers.TryGetValue(widgetPage, out widgetStamper))
{
pageStampers[widgetPage] = widgetStamper = new PageStamper(widgetPage);
}
RectangleF widgetBox = widget.Box;
widgetStamper.Foreground.ShowXObject(widgetCurrentAppearance, widgetBox.Location, widgetBox.Size);
}
}
// Removing the widget from the page annotations...
PageAnnotations widgetPageAnnotations = widgetPage.Annotations;
widgetPageAnnotations.Remove(widget);
if (widgetPageAnnotations.Count == 0)
{
widgetPage.Annotations = null;
widgetPageAnnotations.Delete();
}
// Removing the field references relating the widget...
PdfDictionary fieldPartDictionary = widget.BaseDataObject;
while (fieldPartDictionary != null)
{
PdfDictionary parentFieldPartDictionary = (PdfDictionary)fieldPartDictionary.Resolve(PdfName.Parent);
PdfArray kidsArray;
if (parentFieldPartDictionary != null)
{
kidsArray = (PdfArray)parentFieldPartDictionary.Resolve(PdfName.Kids);
}
else
{
kidsArray = formFields.BaseDataObject;
}
kidsArray.Remove(fieldPartDictionary.Reference);
fieldPartDictionary.Delete();
if (kidsArray.Count > 0)
{
break;
}
fieldPartDictionary = parentFieldPartDictionary;
}
}
}
if (formFields.Count == 0)
{
// Removing the form root...
document.Form = null;
form.Delete();
}
foreach (PageStamper pageStamper in pageStampers.Values)
{
pageStamper.Flush();
}
}
