Posted on Sun 11 July 2021 in latex • 4 min read
Update 2023: While this all works in principle, I encountered too many PDF viewers where some form elements where doing unexpected things. The current approach is to only print visual form elements and make the form fillable with some PDF authoring software.
A few weeks ago I thought it would …
Posted on Mon 30 November 2020 in latex • 1 min read
As I sometimes come around some useful links which just go missing again I will collect them here:
to be continued...
Posted on Fri 16 October 2020 in misc • 3 min read
Early in the summer we had the idea to change the lights on our back porch from various switches inside the garage to something one could control without going anywhere. As I had an old RaspberryPi lying around I ordered a small relay board and installed domoticz to switch the …
Posted on Fri 02 October 2020 in linux • 2 min read
I usually listen to music while working and every once in a while I ask myself what the current track might be. I could switch to my music player or have a look in the sound control plugin of the XFCE panel, but that involves clicking or moving the focus …
Posted on Thu 20 February 2020 in linux • 2 min read
Merging PDFs can be easily done with pdftk. You can also use this tool to select
only specific pages from your document or rotate pages. This is my go-to tool if I
don't have to manipulate pages beyond rotation.
To concatenate all PDFs in the working …
Posted on Wed 08 March 2017 in misc • 1 min read
Digikam is a very powerful and complex software to manage photos. I was using shotwell previously for quite some time, but it's capabilities are limited. Wherever you go, digiKam is recommended instead.
The best things in digiKam so far are hierarchical tags and automatic face detection. But on the other …
Posted on Wed 18 January 2017 in misc • 1 min read
Yesterday I had to convert some JPEG images with a white background into a PNG with a transparent background. While it is possible to do this by just replacing white with transparent, this also replaces white in other parts of the image where this is not intended. So the better …
Posted on Wed 18 January 2017 in python • 1 min read
To download files accessible over HTTP(S) where you are generating their URLs with Python 3, saving can be done with
from urllib.request import urlretrieve
urlretrieve(url, local_filename)
Posted on Wed 18 January 2017 in misc • 1 min read
Just as a reminder: Adding status: draft to the header of a pelican source written in Markdown sets the draft mode.
(From the pelican docs)
Posted on Fri 06 January 2017 in linux • 1 min read
Very handy list of needed commands: https://www.sslshopper.com/article-most-common-openssl-commands.html
This is especially useful if you hve to check details of a certificate, but also to check which certificate is serverd on non HTTP protocols.