Extract image from pdf file without quality loss to jpgs

Move in terminal to folder which contains the pdf file.

$pdfimages -j file.pdf page

This will leave you with .jpgs  for the image files 

and .pbm for the text pages.

Convert wit imagemagick installed the pbm files:

$convert *.pbm *.jpg

 

Putting your monitor in portrait mode

I have a wonderful HP LP2475W monitor with a pivoting standard:
http://ii.alatest.com/product/full/5/8/HP-LP2275-LP2475-0.jpg

I wondered if it was easy to use the portrait mode under Linux.

When using proprietary nvidia drivers it is no problem at all:
1. Add the following line to the Device-section for the graphics-card (in /etc/X11/xorg.conf):

Option "RandRRotation" "on"

2. Use these two commands:
xrandr -o 1 Rotate to portrait
xrandr -o 0 Rotate to landscape

3. Add this to rc.xml keybindings to use Openbox keybindings Super + Left (W+ Left) for Portrait and Super + Right back to Landscape Mode

xterm -e "xrandr -o 0"   Screen in Portait Mode
xterm -e "xrandr -o 1"   Screen in Landscape Mode

Thanks to this article: http://symlink.dk/linux/config/pivot/

Educational software

Good introduction article about educational software on the Linux desktop.
Some essential links from it:
The KDE Education Project

Schoolforge.net : To find Linux software check under Education Software on the left side of the page and select the GNU/Linux operating system at the top of the list.

Tux4Kids

and a link to a pdf file
Kids's Software for Linux

What this article leaves out of its focus is the incredible amount of cross platform educational pages on the web. Many use Java, youtube or flash content. I would like to mention the khanacademy.org site as a great example of youtube based content.
JClic as an example as community driven java software.

STILL STUP??

STumbling In Linux Land, STupid and Unlucky Pablo?

What a pity my name isn't Basil! Stub from stubborn, not giving up.

This is about my search to master Linux. To migrate..and what I discovered on the way.
2007
First I'm a coward and don't dare to risk and use an existing pc with XP after some horrible experiences with a f*ked M(aster) B(oot) R(ecord). I really need a working pc in my daily life so I decided to use and older pc with a 633Mhz Pentium processor and 512 mb working memory; harddisk about 15 gb. It's an Aopen AX34 from the year 2000 with an Ati Radeon N625 (7200) videocard.
The first thing I did was to install Windows 2000 over the horrendous MS ME to discover the possibilities and dangers regarding DUAL BOOTING.
2009
I 'm using Ubuntu LTS on a daily bais now on my main pc ad only use Windows for the programs that aren't yet translated to Linux (adaptive software fro my disabled daughter) and hardware I don ' t have the right driver for (my Canon4200f). It really brought the fun back for me in computing.