Search PDF via Java

Advanced PDF document search. Use Aspose.PDF for Java to modify PDF documents programmatically

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How to Search PDF File Using Java

In order to search PDF, we’ll use Aspose.PDF for Java API which is a feature-rich, powerful and easy to use conversion API for Java platform. You can download its latest version directly from Maven and install it within your Maven-based project by adding the following configurations to the pom.xml.

Repository

<repository>
    <id>AsposeJavaAPI</id>
    <name>Aspose Java AP</name>
    <url>https://releases.aspose.com/java/repo/</url>
</repository>

Dependency

<dependency>
<groupId>com.aspose</groupId>
<artifactId>aspose-pdf</artifactId>
<version>version of aspose-pdf API</version>
</dependency>

Search PDF File via Java

You need Aspose.PDF for Java to try the code in your environment.

  1. Load the PDF with an instance of Document.
  2. Create TextFragmentAbsorber Object with text to find as parameter.
  3. Get all extracted text fragments collection.
  4. Loop through each fragment to get all of its information.

Search PDF Files - Java


// Load PDF document
Document pdfDocument = new Document("source.pdf");

// Create TextAbsorber object to find all instances of the input search phrase
TextFragmentAbsorber textFragmentAbsorber = new TextFragmentAbsorber("\d{4}-\d{4}"); // like 1999-2000

// Set text search option to specify regular expression usage
TextSearchOptions textSearchOptions = new TextSearchOptions(true);
textFragmentAbsorber.setTextSearchOptions(textSearchOptions);

// Accept the absorber for first page of document
pdfDocument.getPages().accept(textFragmentAbsorber);

// Get the extracted text fragments into collection
TextFragmentCollection textFragmentCollection = textFragmentAbsorber.getTextFragments();

// Loop through the fragments
for (TextFragment textFragment : (Iterable<TextFragment>) textFragmentCollection) {
	System.out.println("Text :- " + textFragment.getText());
	System.out.println("Position :- " + textFragment.getPosition());
	System.out.println("XIndent :- " + textFragment.getPosition().getXIndent());
	System.out.println("YIndent :- " + textFragment.getPosition().getYIndent());
	System.out.println("Font - Name :- " + textFragment.getTextState().getFont().getFontName());
	System.out.println("Font - IsAccessible :- " + textFragment.getTextState().getFont().isAccessible());
	System.out.println("Font - IsEmbedded - " + textFragment.getTextState().getFont().isEmbedded());
	System.out.println("Font - IsSubset :- " + textFragment.getTextState().getFont().isSubset());
	System.out.println("Font Size :- " + textFragment.getTextState().getFontSize());
	System.out.println("Foreground Color :- " + textFragment.getTextState().getForegroundColor());
}