JASLEEN KAUR'S BLOG

Reduce PDF file size in Linux

October 9, 2016

A GhostScript command can help in reducing your pdf size. $gs -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen -sOutputFile=output.pdf input.pdf You can also use the following parameters for -dPDFSETTINGS instead of /screen: /screen – Lowest quality, lowest size /ebook – Moderate quality /printer – Good quality /prepress – Best quality, highest size I was able to reduce … More Reduce PDF file size in Linux

Welcome page is missing in Qt Creator

April 11, 2016

I am using Qt creator 3.0.1 with Qt 5.2.1 on ubuntu 14.04 32-bit. My welcome page was empty, no examples, no documentation. I searched for its solution. But some links says it is a bug unsolved, some says solved. However, after 2 days of struggle of finding its solution, I was able to have beautiful warm welcome … More Welcome page is missing in Qt Creator

commands to check Qt version and select one from many

April 4, 2016

$qtchooser -list-versions #This will give you list of Qt versions installed on your system $export QT_SELECT=qt4 # to select qt4, simillarly can try selecting differernt versions too.

libboost installation

April 4, 2016

Currently, I am working on CAD software and I need boost library for it. I am installing FreeCAD which demands minimum version of 1.33. here is list of dependencies of FreeCAD https://packages.debian.org/source/jessie/freecad My system is giving me My system is giving me error about libboost that some packages of libboost are not installed though I installed it. … More libboost installation

Fix broken package in Ubuntu

March 5, 2016

This problem is too common, sometimes we have some partial downloaded packages that stuck in our apt-get package manager and create troubles for us. To do this try these commands and see if any works for your case: 1) You can delete the lock file with the following command: $sudo rm /var/lib/apt/lists/lock You may also … More Fix broken package in Ubuntu

Removing all files located

March 5, 2016

Sometimes, we need to delete all the files searched by locate command. What we do ( i do this before :P) is to go to those files path and delete them manually, one by one, which was a tedious job. So to do this using command, type: $locate <search-string> | xargs rm -Rf What xargs does … More Removing all files located

Octave 4.0 installation on ubuntu 14.04 from PPA

March 5, 2016

Octave is one of the free and open source alternative to MATLAB, can be used for numerical computations, image processing, data analysis and in many fields. Ubuntu 14.04 comes with octave version 3.8, Which has some less features needed for image processing. Version 4.0 comes with the more features and therefore I install PPA on … More Octave 4.0 installation on ubuntu 14.04 from PPA

Errors were encountered while processing: E: Sub-process /usr/bin/dpkg returned an error code (1)

March 5, 2016

During installation of octave, I got these errors regarding configuration of packages: This is because during installation of packages, they get installed but yet configured to octave configuration file. Therefore, I tried command $sudo dpkg –configure -a && sudo apt-get update –fix-missing But those errors still persists. On searching, I found solution is to remove … More Errors were encountered while processing: E: Sub-process /usr/bin/dpkg returned an error code (1)

Introducing myself.

February 26, 2016

Watery blue, Grassy’s green, these are the colors of my Dream. Deep inside, walking alone, this is the home to whom I belong. Thoughtful Days, Dreamy nights, these are my daily diets. Reading books, exploring myself, this is my ever time best friends. ………………………………………………………………………………………………………….. I am a child of God. 🙂 … More Introducing myself.

‘dance with the change’

February 21, 2016

Ever tried. Ever failed. No matter. Try Again. Fail again. Fail better.