[poppler] (off-topic) comparing the contents from two PDF documents

[Pablo Rodríguez]

Hi there,

I would like to know whether there is an automatic way to compare the
contents of two PDF documents.

I mean, the documents listed bellow are two PDF documents generated with
XeLaTeX from the same TeX sources, using the 1.4 and 1.5 versions.

Each contains 1424 pages and it is not clear whether these documents
have exactly the same page breaks (it shouldn't be different, but this
might happen if there is a bug in XeTeX or xdvipdfmx).

Here are the links:

 http://users.ox.ac.uk/~rahtz/Guidelines_1.5.pdf
 http://users.ox.ac.uk/~rahtz/Guidelines_1.4.pdf

Comparing the contents from both documents visually would be a crazy task.

Both documents are supposed to have exactly the same contents. Would it
be a way to check automagically whether the contents from both documents
differ or not?

Thanks for your help,


Pablo