Re: Need advice: what pdf lib to use?

[sergiu gordea]

Ben Litchfield wrote:
In order to write software that consumes PDF documents you must agree to a
list of conditions.  One of those conditions is that permissions specified
by the author of the PDF document are respected.
PDFBox complies with this statement, if there is software that does not
then they are in violation of copyright law.
 

I wanted to say something like this in one of my previous emails, when I 
said that  anyone can modify the code of
PDFBox to replace the restrictions

That being said, PDFBox is open source so a user could make modifications
to the source code, or as a PDF library could change permissions on a
document.
 

This seems to me as beeing a business decision,
Iouli .... if your boss tels you that PDFBox is useless because it 
prevents you to get the text from protected pdfs,
than you should say him ... I can fix it but it is not legal. You can 
hack PDFbox, but before doing this you should
ensure that the authors let you do it.

All the best,
 Sergiu

Ben
On Mon, 25 Oct 2004 [EMAIL PROTECTED] wrote:
 

Yes Ben, You are right.
This would be correct functionality from technical perspective. But look
it my way with application programmer eyes reporting to big boss that c.
30% of doc we cope with could not be indexed because of this stupid
limitation. Neither he or me have any influence on pdf owners and any
ideas about what made  them create files with documet security set.
In short, if You also could implement this "uncorrect functionality"  the
"closed source" guys did, it would be really great!
As far as sponsoring is concerned I would be ready to hack (or at least to
try) it even for 1/3 of that fortune:)))
J.


Ben Litchfield <[EMAIL PROTECTED]>
25.10.2004 14:02
Please respond to "Lucene Users List"
       To:     Lucene Users List <[EMAIL PROTECTED]>
       cc:     (bcc: Iouli Golovatyi/X/GP/Novartis)
       Subject:        Re: Need advice: what pdf lib to use?
       Category:

PDFBox does not 'stumble' when it gives that message, that is correct
functionality if that permission is not allowed.
If your company is willing to pay a 'fortune' why not sponsor a change to
an open source project for half a fortune.
Ben
http://www.pdfbox.org
On Mon, 25 Oct 2004 [EMAIL PROTECTED] wrote:
   

PDFbox stumbles also with "class java.io.IOException with message:  -
     

You
   

do not have permission to extract text" in case the doc is copy/print
protected.
I tested now the snowtide commercial product and it looks like it could
process these files as well. Performance was also not so bad.
     

Unfortunatly
   

the test result could not be considered as 100%, because the free
     

version
   

processed just first  8  pages.  After all this product costs a fortune
(as long the company is ready to pay I don't realy mind:))
J.


Robert Newson <[EMAIL PROTECTED]>
Sent by: news <[EMAIL PROTECTED]>
24.10.2004 17:44
Please respond to "Lucene Users List"
       To:     [EMAIL PROTECTED]
       cc:     (bcc: Iouli Golovatyi/X/GP/Novartis)
       Subject:        Re: Need advice: what pdf lib to use?
       Category:

[EMAIL PROTECTED] wrote:
     

Hello all,
I need a piece of advice/experience..
What pdf parser (written in java) u'd recommend?
I played now with PDFBox-0.6.7a and would not say I was satisfied too
       

much
     

with it
On certain pdf's (not well formated but anyway readable with acrobate)
       

it
     

run into dead loop (this I could fix in code),
and on one file it produced "out of memory error" and killed jvm:(
       

(this
   

problem I could not identify yet)
After all the performance was not too great as well: it took c. 19 h.
       

to
   

index 13000 files (c. 3.5Gb)
Regards,
J.

       

On the specific problem of the "dead loop", I reported an instance of
this to Ben a week or so ago and he has fixed it in the latest
nightlies.  I expect an official release will include this bugfix soon.
The file in question was unreadable with any PDF software I have, but
someone managed to create it somehow...
http://sourceforge.net/tracker/index.php?func=detail&aid=1037145&group_id=78314&atid=552832
I've found pdfbox to be pretty good. The only time I get problems is
with corrupted or egregiously bad PDF files.
B.
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