PDF Reader for MacOS with font size cutomization Very often the font size in pdf files is too small. To read the document one has to continuously scroll and zoom the document, which I find really annoying, especially when several windows are opened. On the other hand in ebook readers (e.g. Kindle) there is the possibility to change the font size of a pdf file. 

Do you know whether there is any pdf reader software for macOS that has this feature?
Anyhow I found that using preview and the combination of commands cmd+ctrl+f the screen goes to two pages and it can be zoomed. This is comfortable enough for reading!