# pdfgrep > Search text in PDF files. > More information: . - Find lines that match pattern in a PDF: `pdfgrep {{pattern}} {{file.pdf}}` - Include file name and page number for each matched line: `pdfgrep {{[-H|--with-filename]}} {{[-n|--page-number]}} {{pattern}} {{file.pdf}}` - Do a case-insensitive search for lines that begin with "foo" and return the first 3 matches: `pdfgrep {{[-m|--max-count]}} {{3}} {{[-i|--ignore-case]}} {{'^foo'}} {{file.pdf}}` - Find pattern in files with a `.pdf` extension in the current directory recursively: `pdfgrep {{[-r|--recursive]}} {{pattern}}` - Find pattern on files that match a specific glob in the current directory recursively: `pdfgrep {{[-r|--recursive]}} --include {{'*book.pdf'}} {{pattern}}`