the timestampz in a pdf, oh my

[der.hans]

Am 01. Feb, 2017 schwätzte Nathan so:

moin moin,

> You mentioned grep, but did you try 'strings' ?
> Does that even exist any more?

Yeah, strings is useful, but in this case I specifically need to check the
binary content, so strings pulling the text out for me doesn't solve the
primary issue. strings was useful for testing. As cat -v and grep --text.

Perhaps I should just throw the image through aalib :).

ciao,

der.hans

> On 2017-02-01 01:29, der.hans wrote:
>> moin moin,
>> 
>> I have some dynamically generated PDFs coming from a pool of web servers.
>> 
>> Each server should be generating a PDF that looks exactly the same as from
>> all the other servers.
>> 
>> The PDF generation includes sticking in a few timestamps and possibly some
>> hostnames or other dynamic content. The dynamic content eliminates the
>> option of just using checksums to verify the output file is the same from
>> all of the web servers.
>> 
>> Any suggestions on how I can write a command line check. Needing to
>> install a script would be far less than ideal in this situation. Funnily
>> enough, needing to install a package would be less of an issue in this
>> particular case, especially something in CentOS 6.
>> 
>> Me being me, I did try to just grep out the lines with timestamps :). That
>> didn't quite work :(. That probably indicates the files aren't as exactly
>> the same as I hope.
>> 
>> I didn't see a pdf2sanity tool. pdf2text won't really work as I need to
>> verify the graphic content and hopefully the PDF wrapper.
>> 
>> ciao,
>> 
>> der.hans
>
>

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