Home

Welcome to the pdf-checker wiki! 日本語の説明はこちら

PDF check utility (pdf-checker)

This tool is able to check PDF properties/contents in a batch mode. It currently checks the following properties of PDF files:

• Number of pages
• PDF version
• (On each page):
  • Number of characters (text length) within a page
  • DPI (dot-per-inch) resolution of embbed images within a page
  • Filetype of embbed images

How to use

Download the binary package and unpack it. And then run the jar file with specifying the targeted PDF files on command line:

  % unzip pdf-checker-20110116.zip
  % java -jar PdfChecker.jar ~/pdf/2010J00*.pdf
  Filename:       /home/masao/pdf/2010J0001.pdf
  PDF version:    3
  Number of pages:        4
  Encryption:     false
  Page size (1):  Rectangle: 595.0x842.0 (rot: 0 degrees)
  Image filetype: png
  DPI-X:  398
  DPI-Y:  398
  Text length:    0
  Page size (2):  Rectangle: 595.0x842.0 (rot: 0 degrees)
  Image filetype: png
  DPI-X:  398
  DPI-Y:  398
  Text length:    0
  Page size (3):  Rectangle: 595.0x842.0 (rot: 0 degrees)
  Image filetype: png
  DPI-X:  398
  DPI-Y:  398
  Text length:    0
  Page size (4):  Rectangle: 595.0x842.0 (rot: 0 degrees)
  Image filetype: png
  DPI-X:  398
  DPI-Y:  398
  .....

An example above means that the file parsed is PDF version 3, having 3 pages, and not encrypted. Each page of this file has a size of "595x842" without rotation and an embedded file of (approximately) 400 DPI resolution with PNG-style compression and

Links

This tool uses and bundles iText PDF Library. Source codes and detailed information is available at http://itextpdf.com/