thanks for your quick response!
I have tested several PDF Solutions (also "Pdf24 Article to PDF ").
"WP Post to PDF" is our best choice and it also has the option to place a link - without php-code - to anywhere in the article.
"PDF24 Article to PDF" works only with an online connection to the internet - and I do not really know what happens to my data.
"WP Post to PDF" works offline and is for our intranet solution therefore more suitable.
Furthermore opens "PDF24 Article to PDF" an additional misleading browser window.
Regardless - the users would like to have the PDF link at the same position as the print-link - ie in the byline section.
Even if you generally advise against additional PHP code in the theme, can you help me in this case anyway?
I will try to bring in only a few such changes - promised