reading pdf

Hi!
I was trying to use some of the pdf2text classes, from for example
php.net. However, with every of them I cannot read any compressed
data. I think the problem might be with gzuncompress. It shows
always:

Warning: gzuncompress() [function.gzuncompress]: data error

I checked the pdf files from inside. Words "Hello world" are
represented in PDF 1.2 as:

xś3Đ3T0 A(ťśËUČU¨`ƒQÉą
N!\úA¦
F
!i\Ą†
ćF
ć@‘\.
ŹÔśś|…ňü˘ś͐,.×…@®@. €r„

but after I compress "Hello world" in PHP I get:

xœóHÍÉÉW(Ď/ĘIŤ=

Do you know how to get this problem fixed? I just would like to read
data from PDF using PHP. I tried running external programs from PHP,
but this is not what I need.

.

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