Utility to convert a pdf for viewing in landscape mode using PyPDF2 package. This makes it easier to read papers and other documents meant to a4 or letter format on ereader devices like the remarkable2 which do not make it easy to read content in landscape. Each page is converted to two overlapping pages covering the top and bottom of the original page.
Can be installed using pip with
pip install landscape_pdf
Installation places a script called landscape-pdf in the path which takes two arguments, the name of the pdf file to convert and the name of the output file. For example
landscape-pdf 2012.13391.pdf 2012.13391_landscape.pdf