11.40.3 Can you answer these questions?

11.40.3.1 Can I use TikZ coordinates in the Basic Layer?
11.40.3.2 Beamer Boxed Sections Produces PDFs that Cannot be Printed by Adobe Acrobat
11.40.3.3 BibLaTeX: How to combine the use of 'related' entries and 'singletitle'?
11.40.3.1 Can I use TikZ coordinates in the Basic Layer?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=745998

I'm trying to define a new coordinate system, which, to the best of my knowledge, requires the use of the PGF basic layer. 
This system uses three points and two parameters to fix a polar coordinate. ... 
[tikz-pgf]
 
asked by EnronEvolved https://tex.stackexchange.com/landing/r/digest?cta=user&id=284949 Score of 1
11.40.3.2 Beamer Boxed Sections Produces PDFs that Cannot be Printed by Adobe Acrobat

https://tex.stackexchange.com/landing/r/digest?cta=question&id=746138

\documentclass{beamer} 
\usetheme{Rochester} 
\AtBeginSection[]{ 
\begin{frame} 
\vfill 
\centering 
\begin{beamercolorbox}[sep=8pt,center,shadow=true,rounded=true]{title} 
\usebeamerfont{... 
[beamer] [printing] [adobe] [shadows] [acrobat]
 
asked by John https://tex.stackexchange.com/landing/r/digest?cta=user&id=388111 Score of 1
11.40.3.3 BibLaTeX: How to combine the use of 'related' entries and 'singletitle'?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=746299

I want to make use of the related field in BibLaTeX to show where an old work was reprinted. The work with the reprint has also some own text, so I want to cite it separately. In my citation-style I ... 
[biblatex]
 
asked by K-HB https://tex.stackexchange.com/landing/r/digest?cta=user&id=169990 Score of 2