Archive for February, 2018

DiffPDF – A tool for comparing PDF files

Posted on: February 21st, 2018 by Olu No Comments

Hi folks,

I just want to talk a bit about a handy tool I tried recently. It’s called DiffPDF and, as the name implies, it helps you compare PDF files for textual differences. It is provided by Qtrac Ltd.

I tried it because I had two large PDF files generated by a similar process and wanted to see if they were identical. DiffPDF did a decent job at comparing the two files. It gives a page-by-page analysis of the comparison so you can easily view at a glance what pages differ. The user interface is quite intuitive and the application is easy to use.

You can try out the application free using a trial license by going to Qtrac’s website http://www.qtrac.eu/diffpdf.html and downloading an appropriate version. After 20 days, a license is needed.

One downside I can see for this app is that it only supports Windows.

So, if you ever need to compare PDF files quickly, try DiffPDF. That’s it for now.

How to Completely Uninstall PyCharm on macOS

Posted on: February 21st, 2018 by Olu No Comments

Hi folks,

Quick tip today. I will share how to completely uninstall PyCharm on a Mac. Why may you want to do this? The other day there was an issue with my PyCharm installation. It was always getting stuck on ‘Indexing…’ on opening a particular project. So, I thought, perhaps installing a fresh updated copy will help. Here are the steps I followed to completely uninstall the existing copy:

1. Go to Applications > right click PyCharm > move to trash

2. open a terminal and run the following: find ~/Library/ -iname “*pycharm*”

verify that all of the results are in fact related to PyCharm and not something else important you need to keep. Then, remove them all using the command: find ~/Library -iname “*pycharm*” -exec rm -r “{}” \;

I was able to install a new version and it worked like a charm. That’s all folks.


Complete uninstall on Mac – IDEs Support (IntelliJ Platform) | JetBrains. https://intellij-support.jetbrains.com/hc/en-us/community/posts/206593875-Complete-uninstall-on-Mac

How to make MacOS Remember your SSH Passphrase

Posted on: February 18th, 2018 by Olu No Comments

Hi folks,

Here’s a quick tip on how to make your macOS remember SSH passphrases. If you use public/private key authentication to access servers, you probably wouldn’t want to have to enter the passphrase every time you access the server. To make your client store the passphrase, all you have to do is enter the following into¬† ~/.ssh/config

Host *
    UseKeychain yes

Once you do this, you would need to enter the passphrase once and afterwards it will be remembered. This was tested on macOS High Sierra.

That’s all for now. Happy coding.



macOS keeps asking my ssh passphrase since I updated to Sierra. https://superuser.com/questions/1127067/macos-keeps-asking-my-ssh-passphrase-since-i-updated-to-sierra