public static void Run()
{
//ExStart: SearchTextWithDotNetRegex
string dataDir = RunExamples.GetDataDir_AsposePdf_Text();
// Create Regex object to find all words
System.Text.RegularExpressions.Regex regex = new System.Text.RegularExpressions.Regex(@"[\S]+");
// Open document
Aspose.Pdf.Document document = new Aspose.Pdf.Document(dataDir + "SearchTextRegex.pdf");
// Get a particular page
Page page = document.Pages[1];
// Create TextAbsorber object to find all instances of the input regex
TextFragmentAbsorber textFragmentAbsorber = new TextFragmentAbsorber(regex);
textFragmentAbsorber.TextSearchOptions.IsRegularExpressionUsed = true;
// Accept the absorber for the page
page.Accept(textFragmentAbsorber);
// Get the extracted text fragments
TextFragmentCollection textFragmentCollection = textFragmentAbsorber.TextFragments;
// Loop through the fragments
foreach (TextFragment textFragment in textFragmentCollection)
{
Console.WriteLine(textFragment.Text);
}
//ExEnd: SearchTextWithDotNetRegex
}
public void CreateIndex(Analyzer analayer)
{
FSDirectory fsDir = new SimpleFSDirectory(new DirectoryInfo(_indexerFolder));
IndexWriter indexWriter = new IndexWriter(fsDir, analayer, true, Lucene.Net.Index.IndexWriter.MaxFieldLength.UNLIMITED);
Stopwatch stopWatch = Stopwatch.StartNew();
int analyzedCount = 0;
string[] files = System.IO.Directory.GetFiles(_textFilesFolder, this._fileSearchPattern, SearchOption.AllDirectories);
//统计需要索引的文件页数
int totalPages = GetTotalPages(files);
WriteLog("Total pages statistics takes {0}ms", stopWatch.Elapsed.Milliseconds);
stopWatch.Restart();
TextAbsorber textAbsorber = new TextAbsorber();
//开始索引
foreach (string pdfFile in files)
{
var fileInfo = new FileInfo(pdfFile);
var fileName = fileInfo.Name;
Aspose.Pdf.Document pdfDocument = new Aspose.Pdf.Document(pdfFile);
WriteLog("Current file is {0}", pdfFile);
//注意pdf页码从1开始
for (int i = 1; i <= pdfDocument.Pages.Count; i++)
{
Page page = pdfDocument.Pages[i];
page.Accept(textAbsorber);
string pageContent = textAbsorber.Text;
Lucene.Net.Documents.Document doc = new Lucene.Net.Documents.Document();
doc.Add(new Field(LuceneConfig.Field_Path, pdfFile, Field.Store.YES, Field.Index.NOT_ANALYZED));
doc.Add(new Field(LuceneConfig.Field_FileName, fileName, Field.Store.YES, Field.Index.ANALYZED));
doc.Add(new Field(LuceneConfig.Field_PageNumber, i.ToString(), Field.Store.YES, Field.Index.ANALYZED));
doc.Add(new Field(LuceneConfig.Field_ContentByPage, pageContent, Field.Store.NO, Field.Index.ANALYZED));
indexWriter.AddDocument(doc);
analyzedCount++;
RaiseProgressChanged(analyzedCount * 100 / totalPages);
}
}
indexWriter.Optimize();
indexWriter.Dispose();
stopWatch.Stop();
Console.WriteLine("All completed. It takes {0}ms", stopWatch.Elapsed);
}
public static void Run()
{
// ExStart:StrikeOutWords
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_AsposePdf_Annotations();
// Open document
Document document = new Document(dataDir + "input.pdf");
// Create TextFragment Absorber instance to search particular text fragment
Aspose.Pdf.Text.TextFragmentAbsorber textFragmentAbsorber = new Aspose.Pdf.Text.TextFragmentAbsorber("Estoque");
// Iterate through pages of PDF document
for (int i = 1; i <= document.Pages.Count; i++)
{
// Get first page of PDF document
Page page = document.Pages[1];
page.Accept(textFragmentAbsorber);
}
// Create a collection of Absorbed text
Aspose.Pdf.Text.TextFragmentCollection textFragmentCollection = textFragmentAbsorber.TextFragments;
// Iterate on above collection
for (int j = 1; j <= textFragmentCollection.Count; j++)
{
Aspose.Pdf.Text.TextFragment textFragment = textFragmentCollection[j];
// Get rectangular dimensions of TextFragment object
Aspose.Pdf.Rectangle rect = new Aspose.Pdf.Rectangle(
(float)textFragment.Position.XIndent,
(float)textFragment.Position.YIndent,
(float)textFragment.Position.XIndent +
(float)textFragment.Rectangle.Width,
(float)textFragment.Position.YIndent +
(float)textFragment.Rectangle.Height);
// Instantiate StrikeOut Annotation instance
StrikeOutAnnotation strikeOut = new StrikeOutAnnotation(textFragment.Page, rect);
// Set opacity for annotation
strikeOut.Opacity = .80f;
// Set the border for annotation instance
strikeOut.Border = new Border(strikeOut);
// Set the color of annotation
strikeOut.Color = Aspose.Pdf.Color.Red;
// Add annotation to annotations collection of TextFragment
textFragment.Page.Annotations.Add(strikeOut);
}
dataDir = dataDir + "StrikeOutWords_out.pdf";
document.Save(dataDir);
// ExEnd:StrikeOutWords
Console.WriteLine("\nWords strikeout successfully.\nFile saved at " + dataDir);
}
public void ExportToText(Stream stream)
{
Document pdfDocument = new Document(_path);
TextAbsorber textAbsorber = new TextAbsorber();
using (TextWriter tw = new StreamWriter(stream, Encoding.Default))
{
for (int i = 1; i <= pdfDocument.Pages.Count; i++)
{
Page page = pdfDocument.Pages[i];
page.Accept(textAbsorber);
tw.Write(textAbsorber.Text);
}
}
}
// ExStart:ShowLinkAnnotations
public static void ShowLinkAnnotations(Page page)
{
foreach (Aspose.Pdf.Annotations.Annotation annot in page.Annotations)
{
if (annot is LinkAnnotation)
{
// Print the URL of each Link Annotation
Console.WriteLine("URI: " + ((annot as LinkAnnotation).Action as GoToURIAction).URI);
TextAbsorber absorber = new TextAbsorber();
absorber.TextSearchOptions.LimitToPageBounds = true;
absorber.TextSearchOptions.Rectangle = annot.Rect;
page.Accept(absorber);
string extractedText = absorber.Text;
// Print the text associated with hyperlink
Console.WriteLine(extractedText);
}
}
}
// ExStart:ShowLinkAnnotations
public static void ShowLinkAnnotations(Page page)
{
foreach (Aspose.Pdf.Annotations.Annotation annot in page.Annotations)
{
if (annot is LinkAnnotation)
{
// Print the URL of each Link Annotation
Console.WriteLine("URI: " + ((annot as LinkAnnotation).Action as GoToURIAction).URI);
TextAbsorber absorber = new TextAbsorber();
absorber.TextSearchOptions.LimitToPageBounds = true;
absorber.TextSearchOptions.Rectangle = annot.Rect;
page.Accept(absorber);
string extractedText = absorber.Text;
// Print the text associated with hyperlink
Console.WriteLine(extractedText);
}
}
}
public static void Run()
{
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_AsposePdf_LinksActions();
//Open document
Document document = new Document(dataDir + "ExtractLinks.pdf");
//Extract actions
Page page = document.Pages[1];
AnnotationSelector selector = new AnnotationSelector(new LinkAnnotation(page, Aspose.Pdf.Rectangle.Trivial));
page.Accept(selector);
IList list = selector.Selected;
Annotation annotation = (Annotation)list[0];
//Save updated document
document.Save(dataDir + "ExtractLinks_out.pdf");
}
public static void Main(string[] args)
{
// The path to the documents directory.
string dataDir = Path.GetFullPath("../../../Data/");
//Open document
Document document = new Document(dataDir + "input.pdf");
//Extract actions
Page page = document.Pages[1];
AnnotationSelector selector = new AnnotationSelector(new LinkAnnotation(page, Aspose.Pdf.Rectangle.Trivial));
page.Accept(selector);
IList list = selector.Selected;
Annotation annotation = (Annotation)list[0];
//Save updated document
document.Save(dataDir + "output.pdf");
}
public static void Run()
{
// ExStart:ExtractLinks
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_AsposePdf_LinksActions();
// Open document
Document document = new Document(dataDir + "ExtractLinks.pdf");
// Extract actions
Page page = document.Pages[1];
AnnotationSelector selector = new AnnotationSelector(new LinkAnnotation(page, Aspose.Pdf.Rectangle.Trivial));
page.Accept(selector);
IList <Annotation> list = selector.Selected;
Annotation annotation = (Annotation)list[0];
dataDir = dataDir + "ExtractLinks_out.pdf";
// Save updated document
document.Save(dataDir);
// ExEnd:ExtractLinks
Console.WriteLine("\nLinks extracted successfully.\nFile saved at " + dataDir);
}
public static void Run()
{
try
{
// ExStart:HighlightCharacterInPDF
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_AsposePdf_Text();
int resolution = 150;
Aspose.Pdf.Document pdfDocument = new Aspose.Pdf.Document(dataDir + "input.pdf");
using (MemoryStream ms = new MemoryStream())
{
PdfConverter conv = new PdfConverter(pdfDocument);
conv.Resolution = new Resolution(resolution, resolution);
conv.GetNextImage(ms, System.Drawing.Imaging.ImageFormat.Png);
Bitmap bmp = (Bitmap)Bitmap.FromStream(ms);
using (System.Drawing.Graphics gr = System.Drawing.Graphics.FromImage(bmp))
{
float scale = resolution / 72f;
gr.Transform = new System.Drawing.Drawing2D.Matrix(scale, 0, 0, -scale, 0, bmp.Height);
for (int i = 0; i < pdfDocument.Pages.Count; i++)
{
Page page = pdfDocument.Pages[1];
// Create TextAbsorber object to find all words
TextFragmentAbsorber textFragmentAbsorber = new TextFragmentAbsorber(@"[\S]+");
textFragmentAbsorber.TextSearchOptions.IsRegularExpressionUsed = true;
page.Accept(textFragmentAbsorber);
// Get the extracted text fragments
TextFragmentCollection textFragmentCollection = textFragmentAbsorber.TextFragments;
// Loop through the fragments
foreach (TextFragment textFragment in textFragmentCollection)
{
if (i == 0)
{
gr.DrawRectangle(
Pens.Yellow,
(float)textFragment.Position.XIndent,
(float)textFragment.Position.YIndent,
(float)textFragment.Rectangle.Width,
(float)textFragment.Rectangle.Height);
for (int segNum = 1; segNum <= textFragment.Segments.Count; segNum++)
{
TextSegment segment = textFragment.Segments[segNum];
for (int charNum = 1; charNum <= segment.Characters.Count; charNum++)
{
CharInfo characterInfo = segment.Characters[charNum];
Aspose.Pdf.Rectangle rect = page.GetPageRect(true);
Console.WriteLine("TextFragment = " + textFragment.Text + " Page URY = " + rect.URY +
" TextFragment URY = " + textFragment.Rectangle.URY);
gr.DrawRectangle(
Pens.Black,
(float)characterInfo.Rectangle.LLX,
(float)characterInfo.Rectangle.LLY,
(float)characterInfo.Rectangle.Width,
(float)characterInfo.Rectangle.Height);
}
gr.DrawRectangle(
Pens.Green,
(float)segment.Rectangle.LLX,
(float)segment.Rectangle.LLY,
(float)segment.Rectangle.Width,
(float)segment.Rectangle.Height);
}
}
}
}
}
dataDir = dataDir + "HighlightCharacterInPDF_out.png";
bmp.Save(dataDir, System.Drawing.Imaging.ImageFormat.Png);
}
// ExEnd:HighlightCharacterInPDF
Console.WriteLine("\nCharacters highlighted successfully in pdf document.\nFile saved at " + dataDir);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message + "\nThis example will only work if you apply a valid Aspose License. You can purchase full license or get 30 day temporary license from http:// Www.aspose.com/purchase/default.aspx.");
}
}
