error by the /Count parameter about pdftotext HOT 2 OPEN

Hello Philipp,

I intentionnally left an exception here because the pdf file format is so
tricky regarding page description that I was sure that one day I would
encounter a case like yours.

For your curiosity, there is a triple indirection in the way which text
objects are contained in which pages :

•      Object #x contains a keyword that specifies a certain number of
  

  objects y1, �., yn1

•      Each object y1, �, y1 references objects z1, �, zn2. These are
  

  the contents for one page

•      In turn, each object z1, � zn2 lists the object that contain the
  

  text drawing instructions to draw a part of the page

And you can even find pdf files without any page description at all ! this
is the case for example of the official Adobe PDF Specification document�

I suspect that your pdf samples have a little inconsistency ; they say that
the page contents for one page are described by 32 objects, while only 6 are
referenced. This may be due to a bug in the application that generated it
but if this is the case, pdf readers need to be highly tolerant so I will
change my class accordingly.

Regarding issue #2 (the repeating error) , I suspect that I need to add a
check somewhere.

Ok, I�ll put that in my bug tracking system.

Christian.

De : phisu [mailto:[email protected]]
Envoyé : mercredi 27 juillet 2016 11:00
À : christian-vigh-phpclasses/PdfToText
Objet : [christian-vigh-phpclasses/PdfToText] error by the /Count parameter
(#8)

hello christian.

i get an error concerning page count. i did:

$pdf = new PdfToText ($filename) ;
echo $pdf->Text;

and i got the following error:

Object #202 : Page count given by the /Count parameter (32) differs from the
actual number of objects referenced by the /Kids parameter (6).
PdfToText.php
545
512

the following files produces similar errors:

http://www.cleanclothes.at/media/common/uploads/download/cck-label-check/CCK
-LabelCheck_screen.pdf
*
https://www.uni-muenster.de/imperia/md/content/physikalische_chemie/praktiku
m/h_p_saetze.pdf
*
http://www.cleanclothes.at/media/common/uploads/download/cck-label-check/CCK
-LabelCheck_screen.pdf

and the same error on the following file. but a repeating error too:
http://www.umweltberatung.at/downloads/mehrweggetraenke-bezugsquellen-abfall
.pdf

Undefined offset: 1
/PdfToText.php
2115

philipp

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Hello Philipp,

I corrected the repeating problem of « undefined offset 1 ». This was due to
an improper parsing of floating point numbers used for specifying
coordinates. A value such as « 0.12 » was recognized, while « .12 » was
discarded.

Regarding the warning (« Page count given by the /Count parameter�. »), your
samples made me discover that page maps could be nested, the top level page
map listing only objects describing further page maps and giving their total
count (yet another pdf surprise !).

I disabled this warning in non-debug mode ; I am not yet able to evaluate
whether the individual page contents extracted from your samples will be
correct ; however, I know that I have to modify the PdfTexterPageMap class
in my source to handle this new crazy situation. This is an issue I added to
my list of open issues�

Regarding the text positioning issues you reported me in another mail (with
extra spaces and extraneous line breaks) , don�t worry, I�m handling them in
a separate thread�

Christian.

De : phisu [mailto:[email protected]]
Envoyé : mercredi 27 juillet 2016 11:00
À : christian-vigh-phpclasses/PdfToText
Objet : [christian-vigh-phpclasses/PdfToText] error by the /Count parameter
(#8)

hello christian.

i get an error concerning page count. i did:

$pdf = new PdfToText ($filename) ;
echo $pdf->Text;

and i got the following error:

Object #202 : Page count given by the /Count parameter (32) differs from the
actual number of objects referenced by the /Kids parameter (6).
PdfToText.php
545
512

the following files produces similar errors:

http://www.cleanclothes.at/media/common/uploads/download/cck-label-check/CCK
-LabelCheck_screen.pdf
*
https://www.uni-muenster.de/imperia/md/content/physikalische_chemie/praktiku
m/h_p_saetze.pdf
*
http://www.cleanclothes.at/media/common/uploads/download/cck-label-check/CCK
-LabelCheck_screen.pdf

and the same error on the following file. but a repeating error too:
http://www.umweltberatung.at/downloads/mehrweggetraenke-bezugsquellen-abfall
.pdf

Undefined offset: 1
/PdfToText.php
2115

philipp

�
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#8 on
GitHub, or mute
<https://github.com/notifications/unsubscribe-auth/ARM8ald5t9481fTbyYBQDRGHj
D61DH0Zks5qZx4igaJpZM4JV-mM> the thread.
<https://github.com/notifications/beacon/ARM8akIa8zNncDVJdBVHBpBtLWqwDOhXks5
qZx4igaJpZM4JV-mM.gif>

L'absence de virus dans ce courrier électronique a été vérifiée par le logiciel antivirus Avast.
https://www.avast.com/antivirus

from pdftotext.