Changing the info for a pdf-file

Usually when creating a pdf-file I do it from Libreoffice. But sometimes I need to scan some pages and create a pdf-file from that. On those occasions the title showing up in the pdf-viewers title bar is either blank or is being filled by the scanner software.
I like my pdfs to look more professional so I change the Title value and usually also the Author value.

Adding an index to your pdf-file

Have you ever created a pdf-file from multiple documents? And wanted to have a clickable index for the pdf-file?
on more than one occasion have I created documents that I need to make an index to, and after some gogling I have come up with the solution that I will share in this article.
We only ned a couple of files and programs to make this work.

Merging pdf-files

Merging and splitting pdf-files is very easy if you have pdftk installed. Using it is as simple as you could ever want it. But I usually end up having to check the man-page if I want to do more complex stuff. I use it everytime I need to do something with a pdf-file. Although there are GUI options my preferred program for working with pdf-files are pdftk.