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Search for text in a PDF

To search for text in a PDF using regular expression.

PDFDoc doc = new PDFDoc(filename);
TextSearch txt_search = new TextSearch();
int mode = TextSearch.e_whole_word | TextSearch.e_page_stop;
String pattern = "";

//use regular expression to find credit card number
mode |= TextSearch.e_reg_expression | TextSearch.e_highlight;
txt_search.setMode(mode);
String new_pattern = "\\d{4}-\\d{4}-\\d{4}-\\d{4}"; //or "(\\d{4}-){3}\\d{4}"
txt_search.setPattern(new_pattern);

//call Begin() method to initialize the text search.
txt_search.begin(doc, pattern, mode, -1, -1);
TextSearchResult result = txt_search.run();

Search PDF files for text
Full code sample which shows how to use TextSearch to search text on PDF pages using regular expressions.

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