https://github.com/masao/pdf-checker

https://github.com/masao/pdf-checker

Last synced: about 2 months ago
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• Host: GitHub
• URL: https://github.com/masao/pdf-checker
• Owner: masao
• Created: 2011-01-13T15:12:01.000Z (about 14 years ago)
• Default Branch: master
• Last Pushed: 2012-06-09T09:04:43.000Z (over 12 years ago)
• Last Synced: 2024-12-04T07:12:40.124Z (2 months ago)
• Language: Java
• Homepage: http://masao.jpn.org/software/pdf-checker/
• Size: 5.13 MB
• Stars: 10
• Watchers: 4
• Forks: 7
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
PDF check utitility

===================

**Pdf-Checker** allows you to check the properties/contents of any PDF files in a batch mode. This currently checks the following properties of PDF files:

* PDF version

* Number of pages

* Permission settings of PDF (copy, modification, printing, and/or accessibility

* (On each page):

  * Filetype of embbed images

  * DPI (dot-per-inch) resolution of embbed images within a page

  * Number of characters (text length) within a page

  

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, as follows:


  % unzip pdf-checker-YYYYMMDD.zip

  % java -jar PdfChecker.jar pdf/2010J00*.pdf

  pdf/2010J0001.pdf	version	3

  pdf/2010J0001.pdf	encryption	false

  pdf/2010J0001.pdf	creationdate	D:20060627211618

  pdf/2010J0001.pdf	producer	PDFlib 4.0.3 + PDI (SunOS 5.8)

  pdf/2010J0001.pdf	pages	8

  pdf/2010J0001.pdf	page1	pagesize	Rectangle: 595.0x842.0 (rot: 0 degrees)

  pdf/2010J0001.pdf	page1	imagetype	png

  pdf/2010J0001.pdf	page1	dpi-x	346.8101

  pdf/2010J0001.pdf	page1	dpi-y	346.06174

  pdf/2010J0001.pdf	page1	text length	83

  pdf/2010J0001.pdf	page2	pagesize	Rectangle: 595.0x842.0 (rot: 0 degrees)

  pdf/2010J0001.pdf	page2	imagetype	png

  pdf/2010J0001.pdf	page2	dpi-x	346.8101

  pdf/2010J0001.pdf	page2	dpi-y	346.06174

  pdf/2010J0001.pdf	page2	text length	87

  pdf/2010J0001.pdf	page3	pagesize	Rectangle: 595.0x842.0 (rot: 0 degrees)

  pdf/2010J0001.pdf	page3	imagetype	png

  pdf/2010J0001.pdf	page3	dpi-x	346.8101

  pdf/2010J0001.pdf	page3	dpi-y	346.06174

  pdf/2010J0001.pdf	page3	text length	0

  pdf/2010J0001.pdf	page4	pagesize	Rectangle: 595.0x842.0 (rot: 0 degrees)

  pdf/2010J0001.pdf	page4	imagetype	png

  pdf/2010J0001.pdf	page4	dpi-x	346.8101

  pdf/2010J0001.pdf	page4	dpi-y	346.06174

  pdf/2010J0001.pdf	page4	text length	1794

  .....



An example of output above shows that the parsed file is PDF version 3, not encrypted, created at June 27th 2006, produced by a tool called PDFLib, and it contains 8 pages. Each page of the file has a size of "595x842" without rotation, an embedded (roughly) 300 DPI resolution image with PNG-style compression, and its textual contents are 80-1800 characters.

The tool can check multiple files at a time by specifying them as arguments. When specifying multiple files, the first column shows each filename.

As the output format is a simple text file with tab-separated, you can read and analyze the results via other applications like Excel.

Links

-----

Pdf-Checker uses and bundles iText PDF Library and Legion of the Bouncy Castle Java cryptography APIs. Source codes and detailed information is available under:

* iText: 

* Bouncy Castle Crypto APIs: