Answers.Body: <p>I've done it by converting each PDF to Word, for which there are a bunch of free converters online. Then I use Word's file comparison feature to see the differences: <a href="http://support.microsoft.com/kb/306484" rel="nofollow">http://support.microsoft.com/kb/306484</a></p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2014-08-22T19:55:19.447Z
Answers.LastActivityDate: 2014-08-22T19:55:19.447Z
Answers.UserDisplayName: William Hertling
Answers.Body: <p>One possibility would be Acrobat (Pro), which has a compare function.</p>
  
  <p>If it is for comparing the results of the OCR process, you might export both documents to Text, and use a text editor which has a compare function (such as Textwrangler or BBEdit).</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2014-08-10T18:15:50.803Z
Answers.LastActivityDate: 2014-08-10T18:15:50.803Z
Answers.UserDisplayName: Max Wyss
Answers.Body: <p>Use <code>diffpdf</code> on linux. You can download a Ubuntu live CD and use that, but since <code>diffpdf</code> is not included in the default install you have to install it with the software center</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2014-12-15T15:26:08.157Z
Answers.LastActivityDate: 2014-12-16T07:01:03.047Z
Answers.LastEditDate: 2014-12-16T07:01:03.047Z
Answers.UserDisplayName: Uwe Burger
Body: <p>I have pdf's to two solutions manuals for a textbook, and I'm trying to determine how much they differ by analyzing both copies with some sort of tool. Does such a thing exist? Is there any other way of determining the differences between two OCR PDF documents?</p>
  
Tags: <pdf><software>
Title: Is there any tool I can use to examine the differences between two OCR pdfs?
UserDisplayName: LanceLafontaine
ThreadText: # Is there any tool I can use to examine the differences between two OCR pdfs?
  
  (Asked by: username_0 on 2014-08-10)
  
  I have pdf's to two solutions manuals for a textbook, and I'm trying to determine how much they differ by analyzing both copies with some sort of tool. Does such a thing exist? Is there any other way of determining the differences between two OCR PDF documents?
  
  **Tags:** pdf, software
  
  
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  ## 3 answers
  
  ### Answer by username_1 on 2014-08-22. Score: 2
  
  I've done it by converting each PDF to Word, for which there are a bunch of free converters online. Then I use Word's file comparison feature to see the differences: <http://support.microsoft.com/kb/306484>
  
  
  ---
  
  ### Answer by username_2 on 2014-08-10. Score: 1
  
  One possibility would be Acrobat (Pro), which has a compare function.
  
  If it is for comparing the results of the OCR process, you might export both documents to Text, and use a text editor which has a compare function (such as Textwrangler or BBEdit).
  
  
  ---
  
  ### Answer by username_3 on 2014-12-15. Score: 1
  
  Use `diffpdf` on linux. You can download a Ubuntu live CD and use that, but since `diffpdf` is not included in the default install you have to install it with the software center
  
  
  ---
  
  