How to create and present a presentation in the 21st century

This will not be the usual stuff explaining to you how to use your Microsoft PowerPoint Software, I am sorry! Instead this will show you a workflow which is setup to make you independent of any tool vendor at maximum level.

The fails

I have seen too much shit happen to my presentations in the past. Even though I was a fan of Apple Keynote and once used PowerPoint to create presentations these times are over for me now. The reasons for this are the following:

  • A Microsoft Powerpoint file on a Mac has issues being presentend on a Windows machine
  • A Microsoft Powerpoint file on Windows has issues being presentend on a Mac machine
  • A Powerpoint file of version 3 cannot be opened by the latest & greatest Powerpoint software
  • An Apple Keynote file from the past cannot be opened with a Keynote app of the present
  • The file format of Powerpoint and Keynote is closed, proprietary and non-human-readable. That means if you never converted your old presentation to a PDF file you will never be able to read your files again.
  • The default mode of operation of Powerpoint and Keynote is to craft a proprietary presentation environment with lots of fancy effects, which mostly distract you from the content presented
  • Both Powerpoint and Keynote make it ridiculously difficult to connect a beamer (simple video out) to the software in a way that not disturbs the user with overcomplicated configuration of screen-sync-settings, screen-resolutions, main-screen, second-screen, super-duper-fancy-triple-screen, etc.
  • Both softwares fail ginormously when you want to present from your smartphone. you need custom software installed, you need custom hardware for the video out (sometimes even proprietary streaming protocol support, i.e. AirPlay), you need ridiculously complex steps to bring the document from your desktop to the smartphone using iTunes, iCloud, some $Dropbox Service or you even need to email the document to yourself to get it into the phone. Because the fucking manufacturer of your phone decided that Micro SD-Cards or USB-Sticks won’t work as a storage medium. FUCK YOU Apple!
  • Sharing your document (and the encoded knowledge) is completely NOT the priority of those companies. That is why export as PDF sucks and file format is proprietary bullshit.
  • Let me summarize: File formats suck, Desktop tools suck, Mobile tools suck, Presentation on Beamer sucks, Sharing of content sucks a huge lot!

Working toolchain

+ +
TexShop Pro
(Free Software on the Desktop)
Choose your favorite tool on Linux
PDF Viewer for iOS
(from PDFKit GmbH)
to present with iPhone
Lighting-to-HDMI-AV Adapter
(from Apple)
connect to iPhone and Beamer

How to

I now use TexShop Pro to create my LaTeX based presentation using the beamer-documentclass. This generates a nicely rendered PDF file. I copy that PDF to my iPhone (actually e-mailing it to myself) and import it into the PDF Viewer. As soon as you connect the AV-Adapter for HDMI-out the App will allow to present the PDF file in landscape mode by simply tapping. That’s totally sufficient for me because I hate all those effects anyway.

If I want to present from my Linux system I choose to use Impressive which is a really nice tool to present nearly anything (e.g. also a folder of images, pdfs, etc.) using nice effects. It has a lot of options to present exactly your style and it taes a lot of things for input, even movies. :)


Here are some links to stuff which helped me to get this up and running.


The following lines are very helpful to setup your presentation for modern purposes.


Line 1 enforces LaTeX to output a PDF Version 1.4 file which is helpful for other software (e.g. the presenting PDF viewer) to cope with the format perfectly. Sometimes Version 1.5 is just not yet that well supported.

Line 2 sets the width of the presentation to use 16:9 format in aspect ratio, which makes use of the widespread beamers now in operation which support wide screens.


You really should read beameruserguide.pdf if you have some time to spend. It gives you a lot of insight on how to tweak your presentation.

Why do I blog this? I am fed up with all the tools mentioned above, because they break stuff for me often. Apple Keynote is a powerful tool, but without them supporting legacy documents adequately (what they don’t) that tool is dead for me. It will be just a matter of time until they kill the PDF export since normal consumers do not need keynote and products for Pro Users get slashed regularly in recent times by Apple Inc. this is it for me. I will go with free tools only. The AV-Adapter will be the most expensive thingy here but for the convenience of presenting with your iPhone this may be worth it for you.

Radioaktivität messen mit PocketGeiger App & Detector

Ich hab mal wieder meine PocketGeiger App ausgepackt und den (mittlerweile alten) Type 1 – Detector und mal auf dem Balkon für 20 Minuten gemessen. Ergebnis: 0.02 µSv/h

Mehr Infos dazu gibt es auf der Webseite des Projektes eine Initiative die nach Fukushima ins Leben gerufen wurde.

Bilder der Messung
Quelle: Eigene Aufnahmen auf dem Balkon

Dabei hab ich dann Lust bekommen mir eine Smart Watch zu bestellen.

Und ich bin auf eine aktualisierte Webseite des Bundesamtes für Strahlenschutz gestossen. Die haben neuerdings eine gute Webseite und eine bessere Karte des Gamma Ortsdosisleistungs Messnetzes.

In den USA gibts es vergleichbares offenbar sowohl als Freiwilligennetz als auch als staatliches Netz in Form des Nuclear Emergency Tracking Center und noch eines von der Umweltbehörde.

In Japan gibt es als Ergebnis der Bürgerinitiativen nach Fukushima die Japan Radiation Map.

This map shows ca 4,500 up-to-date radiation measurements, collected from various official sources. On roll-over information is provided for that particular location – radiation levels are visualized by the colored square’s size. Locations marked with the + sign reveal more locations on zoom-in. Logging since march 2011, the accumulated data contains now 100,000,000+ records, available for research.

Messnetzkarte des ODL Netzes
Quelle: ODL Messnetz Webseite des BfS

Ich hab dann mal eine Registrierung für deren API angefordert.

Die App

Diese App gibts übrigens hier:

App im AppStore

Weitere schöne Tracking Projekte

Geigerzähler von korrupt mit Beta/Gamma-Hintergrundstrahlung in Wuppertal-Elberfeld

Why do I blog this? Angesichts der Tatsache, dass ich weder Apples Apple Watch sonderlich „smart“ finde, noch ihre Bestrebungen den Standard-Audioanschluss des iPhone zu eliminieren (der für PocketGeiger die ultimative & einzige Schnittstelle ist), wollte ich das mal festhalten wie gut das funktioniert.

Open-Device-Lab im Hackerspace Bremen

steve_liedtkeÜber den Hackerspace Bremen hat Steve Liedtke das erste Open-Device-Lab gegründet. Solche Labore (kurzs Labs) existieren bereits in anderen Städten und Kontexten.

Artikel im Weserkurier

Heute gibt es einen schönen Artikel darüber im Weserkurier von Maren Beneke:

28.02.2014: Sogenanntes Open-Device-Lab stellt Bremer Softwareentwicklern Handys und Tablets kostenfrei zur Verfügung –
Student gründet ersten Mobil-Gerätepark

Quelle: WeserKurier Online

Das Open Device Lab Bremen

Open Device Lab Bremen

Eine Übersichtskarte für Europa kann man z.B. hier einsehen.

Orte in Europa
Orte in Europa