indentationparagraphsparskip
How could I un-indent all paragraphs and increase the space between paragraphs, avoiding – at the same time – unwanted changes?
Package parskip works partially fine for me (it causes some unwanted changes).
What would you recommend to me?
The template of the project I am working on is here.
I'd still use the parskip package and try to sort out problems regarding lists and individual indented paragraphs, but you may change the length \medskipamount which is used by \medskip. (In the following example, I'm changing \medskipamount in the document body for demonstration purposes -- you should modify it in the preamble.)
\documentclass{article}
\begin{document}
Some text.
\medskip
Some text.
\setlength{\medskipamount}{12pt plus 4pt minus 4pt}% Default: 6pt plus 2pt minus 2pt
\medskip
Some text.
\end{document}
As Ulrike Fischer suggested, you may also define a dedicated command to be used between paragraphs:
\documentclass{article}
\newcommand*{\myparskip}{\vspace{\medskipamount}}
\begin{document}
Some text.
\myparskip
Some text.
\renewcommand*{\myparskip}{\vspace{\bigskipamount}}
\myparskip
Some text.
\end{document}
Output for both variants:
In general, spacing is variable in TeX, that is the reason why you use it.
First, make sure that you did not force latex to break lines or put objects in non-ideal positions. One possibility is using [H] specifier for floats as mentioned by egreg.
However, if there are extreme spacing you can modify the limits and the bahaviour of typesetting. You may use \raggedbottom if you want to move extra whitespaces to the bottom of the page instead of spreading it through the page. You may also change penalties and limits to let latex to break paragraphs and other items between pages and result in a more compact document. Check this page if you really want to squeeze spaces in Latex.
However, it is always better to post a minimum working example of your problem.
Best Answer
The lenght of indention of a paragraph is saved in the register
\parindent.The extra skip between paragraphs is saved in the register
\parskip.So to setup your document against all recommended typographic rules you can set inside your preamble: