When changing the paper size within a document, the fancyhdr package does not recognize the alteration of the layout width.
This page details how to change page size mid-document.
An answer has been given which uses \pdfpagewidth.
An answer has been given which uses \KOMAoptions.
Neither solves fancyhdr horizontal justification.
MWE
\documentclass{scrartcl}
\usepackage{geometry}
\usepackage{fancyhdr}
\usepackage{lipsum}
% Margin Settings:
\geometry{letterpaper}
\geometry{vmargin = 0.50in,
hmargin = 0.50in,
headheight = 0.50in,
headsep = 0.15in,
footskip = 0.60in}
\usepackage{showframe}
%Initialize headers and footers
\pagestyle{fancy}
\fancyhf{} % Clears out artifacts from default header
\fancyhead[C]{Header}
\fancyfoot[C]{Footer}
\fancyfoot[R]{ Page \thepage} % Begin footer page number
\renewcommand{\headrulewidth}{0pt} % Removes default horizontal line
\begin{document}
{\Huge \textbf{Original}}
\lipsum[1]
\clearpage
\newgeometry{layoutwidth = 04.25in,
layoutheight = 11.00in}
\pdfpagewidth = 04.25in
\pdfpageheight = 11.00in
\lipsum[1]
\clearpage
\newgeometry{layoutwidth = 04.25in,
layoutheight = 11.00in,
vmargin = 00.50in,
hmargin = 00.50in,
headheight = 00.50in,
headsep = 00.15in,
footskip = 00.60in}
\pdfpagewidth = 04.25in
\pdfpageheight = 11.00in
\lipsum[1]
\clearpage
\newgeometry{layoutwidth = 11.00in,
layoutheight = 04.25in,
vmargin = 00.50in,
hmargin = 00.50in,
headheight = 00.50in,
headsep = 00.15in,
footskip = 00.60in}
\pdfpagewidth = 11.00in
\pdfpageheight = 04.25in
\lipsum[1]
\clearpage
\newgeometry{layoutwidth = 17.00in,
layoutheight = 11.00in,
vmargin = 00.50in,
hmargin = 00.50in,
headheight = 00.50in,
headsep = 00.15in,
footskip = 00.60in}
\pdfpagewidth = 17.00in
\pdfpageheight = 11.00in
\lipsum[1]
\clearpage
\newgeometry{layoutwidth = 08.50in,
layoutheight = 11.00in,
vmargin = 00.50in,
hmargin = 00.50in,
headheight = 00.50in,
headsep = 00.15in,
footskip = 00.60in}
\pdfpagewidth = 08.50in
\pdfpageheight = 11.00in
{\Huge \textbf{Original}}
\lipsum[1]
\clearpage
\KOMAoptions{paper=17in:11in,pagesize}
\recalctypearea
\lipsum[1]
\clearpage
\KOMAoptions{paper=17in:11in,pagesize}
\recalctypearea
\newgeometry{layoutwidth = 17.00in,
layoutheight = 11.00in,
vmargin = 00.50in,
hmargin = 00.50in,
headheight = 00.50in,
headsep = 00.15in,
footskip = 00.60in}
\lipsum[1]
\end{document}
Also: Can a user create and append a mid-document tag?
I feel that some users receive preamble advice when seeking in-document advice.
fancyhdrwith a KOMA-class? You get warnings. Better to usescrlayer-scrpageform the KOMA-bundle which will just work perfectly. – Johannes_B Jun 18 '15 at 17:18KOMA;-) – Jun 18 '15 at 17:37scrlayer-scrpageis just better with a KOMA-class. You woudn't recommendfancyhdrwithmemoir, right? – Johannes_B Jun 18 '15 at 17:38