I use this one, maybe it will work better for you. Un-install the other one first.
Also, having a swapfile is very helpful when reading pdf files.
You already have libfreetype_6.3.4-1
I also included the version of libt1 that I have installed.
Remember, the forum changes dashes to underscores. These are the correct filenames:
qpdf2_render-freetype-2.3.0-070505a-1_arm.ipk
libt1_1.3.0-1_arm.ipk
Package: qpdf2
Version: render-freetype-2.3.0-070505a-1
Depends: libfreetype, libt1
Section: qpe/applications
Architecture: arm
Maintainer: Philip Kohn
MD5Sum: 78968771bae6e701b81bd1653d87a0dd
Size: 437537
Filename: ./qpdf2_render-freetype-2.3.0-070505a-1_arm.ipk
Description: Advanced PDF viewer and organizer for QPE.