Q: I need to position different text runs to different positions on a
single PDF page. These blocks of text should be centered on a page in
vertical direction and the space between them has to be equal for all
A: Using PDFNet SDK (http://www.pdftron.com/net) you can add new
content to existing PDF pages. As a starting point you may want to
take a look at the following FAQ:
and the following Knowledge Base articles:
"What is the proper way to add new content to an existing (rotated/
cropped) PDF page? "
"How can I stamp all PDF pages with a rotated and centered text
The following article covers how to add center and right justified
"How can I align/justify text when placing it on a page?"