Benjamin Rosemann@[email protected] as far as I understand you want to implement a PDF -> Text -> PDF workflow. Using plaintext as intermediate is problematic, as you (may) lose a lot of layout information.
For high quality fulltext you may need a more sophisticated intermediate format like #PageXML or #AltoXML. But they also require a more sophisticated tool for editing like #OCR4All.
Stefan Weil
Janne