Provide the structure of the content with a page number.
Task definition, sketches, implementation, etc. The content of a documentation describes the process of a module, course or project and should also be comprehensible by outsiders. What was done and why and what was the finding. Even designs, tests, studies that have been discarded can be included in a documentation with a reason why they were discarded.
A brief summary and contact details of those involved in the project if requested. The most important thing is that the documentation has a traceable end.
In principle, the format of the documentation is up to the creator. Since nowadays many documentations are only read digitally, it is recommended to choose a landscape format. In order to be able to print the document without any loss of quality, it is recommended to use DIN A4.
Definition of a simple page layout with margins and a grid to easily fill the content. It is also recommended to create a template that defines the position of the headline and body text.
Image source: https://bradymvccdigitaldesign.wordpress.com/2014/02/14/the-grid-in-layout-design-2/
For the reading text it is recommended to choose a good readable font and one that does not play into the foreground.It is not recommended to choose more than three or four different font sizes for the content.
Image source: https://www.typolexikon.de
The number of image formats should be kept small. Furthermore, attention should be paid to resolution and exposure of photographs or scans. It is helpful to take the documentation pictures outside and under cloudy skies.
After writing out a PDF, be sure to go back through the file to make sure everything is rendered as it should be.