Twitter audience

Earlier today, I wrote an article on about the problem of fake followers on Twitter: How real are your followers? I wrote this post after a newspaper reported about a Belgian political party that won more than 10K followers in India in a very short period of time. One of my readers jokingly asked me: And how many followers do you have in India?

Over and Out for Klout

My personal Klout score

We used to make fun of Klout. For instance: whenever it was your birthday, your Klout score spiked because of all the people sending you birthday wishes on social media. Nevertheless, many of us looked at the Klout score of our personal and business accounts on social media.

Blockchain for documents

In December 2016, I filed a series patents combining document technology with Blockchain. Three of these patents are already granted in Belgium; four are pending world-wide (ETA June 2019). A DZone reference card already reveals already some of the mechanisms described in the patents.

Podcast interview

In this Dutch podcast, Bert asks me about the history of iText, about successes and failures, about strengths and weaknesses, about courage and fear, and so on.

Getting ready for GIDS 2018

Next week, I'm flying to Bangalore for the Great Indian Developer Summit (GIDS). I've been asked as a keynote speaker for the third year in a row.

This was my keynote in 2017:

For business updates: go to

I haven't been very active on my blog the last couple of years. Old blog posts were archived when I switched to a new Drupal version, and the only posts I wrote were about the performance of the iText web site. That's no longer needed now that the marketing team at iText was extended, so you probably won't see much activity on this site anymore, apart from an occasional update of my bio page.