private void button1_Click(object sender, EventArgs e)
{
//Create a new PDF document.
PdfDocument pdf = new PdfDocument();
//Load the file from disk.
pdf.LoadFromFile(@"..\..\..\..\..\..\Data\Template_Pdf_3.pdf");
//Get all annotations from the first page.
PdfAnnotationCollection annotations = pdf.Pages[0].AnnotationsWidget;
StringBuilder content = new StringBuilder();
for (int i = 0; i < annotations.Count; i++)
{
//A text annotation will attach a popup annotation since they are father-son relationship.
//The annotation information exists in the text annotation, so here we mask the blank popup annotation.
if (annotations[i] is PdfPopupAnnotationWidget)
{
continue;
}
content.AppendLine("Annotation information: ");
content.AppendLine("Text: " + annotations[i].Text);
string modifiedDate = annotations[i].ModifiedDate.ToString();
content.AppendLine("ModifiedDate: " + modifiedDate);
}
String result = "Result-GetAllAnnotationsFromPage.txt";
//Save to file.
File.WriteAllText(result, content.ToString());
//Launch the file.
PDFDocumentViewer(result);
}
private void button1_Click(object sender, EventArgs e)
{
//Create a new PDF document.
PdfDocument pdf = new PdfDocument();
//Load the file from disk.
pdf.LoadFromFile(@"..\..\..\..\..\..\Data\Template_Pdf_3.pdf");
//Get the annotation collection from the document.
PdfAnnotationCollection annotations = pdf.Pages[0].AnnotationsWidget;
//Get particular annotation information from the document.
StringBuilder content = new StringBuilder();
if (annotations[0] is PdfTextAnnotationWidget)
{
PdfTextAnnotationWidget textAnnotation = annotations[0] as PdfTextAnnotationWidget;
content.AppendLine("Annotation text: " + textAnnotation.Text);
content.AppendLine("Annotation ModifiedDate: " + textAnnotation.ModifiedDate.ToString());
content.AppendLine("Annotation author: " + textAnnotation.Author);
content.AppendLine("Annotation Name: " + textAnnotation.Name);
}
String result = "GetParticularAnnotationInfo_out.txt";
//Save to file.
File.WriteAllText(result, content.ToString());
//Launch the file.
DocumentViewer(result);
}
private void button1_Click(object sender, EventArgs e)
{
//Create a pdf document
PdfDocument doc = new PdfDocument();
//Load file from disk
doc.LoadFromFile(@"..\..\..\..\..\..\Data\LinkAnnotation.pdf");
//Get the first page
PdfPageBase page = doc.Pages[0];
//Get the annotation collection
PdfAnnotationCollection annotations = page.AnnotationsWidget;
//Create StringBuilder to save
StringBuilder content = new StringBuilder();
//Verify whether widgetCollection is not null or not
if (annotations.Count > 0)
{
//traverse the PdfAnnotationCollection
foreach (PdfAnnotation pdfAnnotation in annotations)
{
//if it is PdfTextWebLinkAnnotationWidget
if (pdfAnnotation is PdfTextWebLinkAnnotationWidget)
{
//Get the Url
PdfTextWebLinkAnnotationWidget WebLinkAnnotation = pdfAnnotation as PdfTextWebLinkAnnotationWidget;
string url = WebLinkAnnotation.Url;
//Add strings to StringBuilder
content.AppendLine("The url of link annotation is " + url);
content.AppendLine("The text of link annotation is " + WebLinkAnnotation.Text);
}
}
}
String result = "GetLinkAnnotation_out.txt";
//Save them to a txt file
File.WriteAllText(result, content.ToString());
//Launch the file
DocumentViewer(result);
}
private void button1_Click(object sender, EventArgs e)
{
//Create a pdf document
PdfDocument doc = new PdfDocument();
//Load file from disk
doc.LoadFromFile(@"..\..\..\..\..\..\Data\LinkAnnotation.pdf");
//Get the first page
PdfPageBase page = doc.Pages[0];
//Get the annotation collection
PdfAnnotationCollection annotations = page.AnnotationsWidget;
//Verify whether widgetCollection is not null or not
if (annotations.Count > 0)
{
//traverse the PdfAnnotationCollection
foreach (PdfAnnotation pdfAnnotation in annotations)
{
//if it is PdfTextWebLinkAnnotationWidget
if (pdfAnnotation is PdfTextWebLinkAnnotationWidget)
{
//Get the link annotation
PdfTextWebLinkAnnotationWidget annotation = pdfAnnotation as PdfTextWebLinkAnnotationWidget;
//Change the url
annotation.Url = "http://www.e-iceblue.com/Introduce/pdf-for-net-introduce.html";
}
}
}
String result = "ExtractAndUpdateLink_out.pdf";
//Save the document
doc.SaveToFile(result);
//Launch the Pdf file
PDFDocumentViewer(result);
}
private void button1_Click(object sender, EventArgs e)
{
//Create a new PDF document.
PdfDocument pdf = new PdfDocument();
//Load the file from disk.
pdf.LoadFromFile(@"..\..\..\..\..\..\Data\UpdateFreeTextAnnotation.pdf");
//Get the annotation Collection from the document.
PdfAnnotationCollection annotations = pdf.Pages[0].AnnotationsWidget;
//Update free text annotation.
foreach (PdfFreeTextAnnotationWidget annotaion in annotations)
{
annotaion.Color = Color.YellowGreen;
}
String result = "UpdateFreeTextAnnotation_out.pdf";
//Save the document
pdf.SaveToFile(result);
//Launch the Pdf file
PDFDocumentViewer(result);
}
private void button1_Click(object sender, EventArgs e)
{
//Load an existing PDF file
PdfDocument document = new PdfDocument();
document.LoadFromFile(@"..\..\..\..\..\..\Data\RemoveHyperlinks.pdf");
//Get the first page
PdfPageBase page = document.Pages[0];
//Get the annotation collection
PdfAnnotationCollection widgetCollection = page.AnnotationsWidget;
//Verify whether widgetCollection is null or not
if (widgetCollection.Count > 0)
{
for (int i = widgetCollection.Count - 1; i >= 0; i--)
{
PdfAnnotation annotation = widgetCollection[i];
//Get the TextWebLink Annotation
if (annotation is PdfTextWebLinkAnnotationWidget)
{
PdfTextWebLinkAnnotationWidget link = annotation as PdfTextWebLinkAnnotationWidget;
//Remove the TextWebLink annotation
widgetCollection.Remove(link);
}
}
}
string output = "RemoveHyperlinks-result.pdf";
document.SaveToFile(output);
//Launch the Pdf file
PDFDocumentViewer(output);
}
