static void DrawGraphics(PdfGraphics graph, PdfTextSearchResults result, SolidBrush brush)
{
for (int i = 0; i < result.Rectangles.Count; i++)
{
RectangleF rect = new RectangleF(new PointF((float)result.Rectangles[i].Left, (float)result.Page.CropBox.Top - (float)result.Rectangles[i].Top),
new SizeF((float)result.Rectangles[i].Width, (float)result.Rectangles[i].Height));
graph.FillRectangle(brush, rect);
}
graph.AddToPageForeground(result.Page, 72, 72);
}
//This method uses annotations to highlight text
public static void HighlightResult(PdfDocumentProcessor processor, PdfTextSearchResults result)
{
for (int i = 0; i < result.Rectangles.Count; i++)
{
PdfTextMarkupAnnotationData annotation =
processor.AddTextMarkupAnnotation(result.PageNumber, result.Rectangles[i], PdfTextMarkupAnnotationType.Highlight);
if (annotation != null)
{
annotation.Color = new PdfRGBColor(0.2, 0.6, 0);
}
}
}
static void FindWord(string textToFind, PdfDocumentProcessor processor, SolidBrush brush)
{
PdfTextSearchResults result = processor.FindText(textToFind);
while (result.Status == PdfTextSearchStatus.Found)
{
using (PdfGraphics graph = processor.CreateGraphics())
{
DrawGraphics(graph, result, brush);
}
result = processor.FindText(textToFind);
}
processor.SaveDocument("result.pdf");
Process.Start("result.pdf");
}
static void Main(string[] args)
{
// Create a PDF document processor.
using (PdfDocumentProcessor documentProcessor = new PdfDocumentProcessor()) {
// Define search words.
string[] words = { "DX-B5000", "DX-RX800" };
// Load a PDF document.
documentProcessor.LoadDocument(@"..\..\Document.pdf");
// Specify the search parameters.
PdfTextSearchParameters searchParameters = new PdfTextSearchParameters();
searchParameters.CaseSensitive = true;
searchParameters.WholeWords = true;
// Get bookmark list.
IList <PdfBookmark> bookmarks = documentProcessor.Document.Bookmarks;
foreach (string word in words)
{
// Get the search results from the FindText method called with search text and search parameters.
PdfTextSearchResults results = documentProcessor.FindText(word, searchParameters);
// If the desired text is found, create a destination that corresponds to the found text
// to be displayed at the upper corner of the window.
if (results.Status == PdfTextSearchStatus.Found)
{
PdfXYZDestination destination = new PdfXYZDestination(results.Page, 0, results.Rectangles[0].Top, null);
// Create a bookmark with the search word shown as title and the destination.
PdfBookmark bookmark = new PdfBookmark()
{
Title = word, Destination = destination
};
// Add the bookmark to the bookmark list.
bookmarks.Add(bookmark);
}
}
// Save the modified document.
documentProcessor.SaveDocument(@"..\..\Result.pdf");
}
}
static void Main(string[] args)
{
//Create a PDF document processor.
using (PdfDocumentProcessor documentProcessor = new PdfDocumentProcessor())
{
//Define search words
string[] words = { "Get", "DX-RX809", "HD", "DX-B5000" };
//Load a PDF document
documentProcessor.LoadDocument(@"..\..\Document.pdf");
//Specify the search parameters
PdfTextSearchParameters searchParameters = new PdfTextSearchParameters();
searchParameters.CaseSensitive = true;
searchParameters.WholeWords = true;
//Comment the following "using" statement if you use annotations
using (var brush = new SolidBrush(Color.FromArgb(130, 55, 155, 255)))
foreach (string word in words)
{
//Get the search results from the FindText method call with search text and search parameters
PdfTextSearchResults result = documentProcessor.FindText(word, searchParameters);
//Highlight the result
while (result.Status == PdfTextSearchStatus.Found)
{
using (PdfGraphics graphics = documentProcessor.CreateGraphics())
{
HighlightResult(graphics, result, brush);
}
//Use this method call to add annotations:
//HighlightResult(documentProcessor, result);
result = documentProcessor.FindText(word, searchParameters);
}
}
//Save the document
documentProcessor.SaveDocument(@"..\..\Result.pdf");
}
}
