Module com.github.librepdf.openpdf

Package com.lowagie.text.pdf.parser

Class PdfTextExtractor

java.lang.Object

com.lowagie.text.pdf.parser.PdfTextExtractor

public class PdfTextExtractor
extends Object

Extracts text from a PDF file.

Since:

2.1.4

Constructor Summary

Constructors

Constructor	Description
PdfTextExtractor(PdfReader reader)	Creates a new Text Extractor object, using a TextAssembler as the render listener
PdfTextExtractor(PdfReader reader, boolean usePdfMarkupElements)	Creates a new Text Extractor object, using a TextAssembler as the render listener
PdfTextExtractor(PdfReader reader, TextAssembler renderListener)	Creates a new Text Extractor object.

Method Summary

Modifier and Type	Method	Description
String	getTextFromPage(int page)	Gets the text from a page.
String	getTextFromPage(int page, boolean useContainerMarkup)	get the text from the page
void	processContent(byte[] contentBytes, PdfDictionary resources, PdfContentStreamHandler handler)	Processes PDF syntax

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

PdfTextExtractor

public PdfTextExtractor(PdfReader reader)

Creates a new Text Extractor object, using a TextAssembler as the render listener

Parameters:

reader - the reader with the PDF

PdfTextExtractor

public PdfTextExtractor(PdfReader reader,
 boolean usePdfMarkupElements)

Creates a new Text Extractor object, using a TextAssembler as the render listener

Parameters:

reader - the reader with the PDF

usePdfMarkupElements - should we use higher level tags for PDF markup entities?

PdfTextExtractor

public PdfTextExtractor(PdfReader reader,
 TextAssembler renderListener)

Creates a new Text Extractor object.

Parameters:

reader - the reader with the PDF

renderListener - the render listener that will be used to analyze renderText operations and provide resultant text

Method Details

getTextFromPage

public String getTextFromPage(int page)
                       throws IOException

Gets the text from a page.

Parameters:

page - the 1-based page number of page

Returns:

a String with the content as plain text (without PDF syntax)

Throws:

IOException - on error

getTextFromPage

public String getTextFromPage(int page,
 boolean useContainerMarkup)
                       throws IOException

get the text from the page

Parameters:

page - page number we are interested in

useContainerMarkup - should we put tags in for PDf markup container elements (not really HTML at the moment).

Returns:

result of extracting the text, with tags as requested.

Throws:

IOException - on error

processContent

public void processContent(byte[] contentBytes,
 PdfDictionary resources,
 PdfContentStreamHandler handler)

Processes PDF syntax

Parameters:

contentBytes - the bytes of a content stream

resources - the resources that come with the content stream

handler - interprets events caused by recognition of operations in a content stream.