As a person with vision problems I sometimes struggle with certain documents that are difficult to read (my computer fonts are usually bold with sizes ~14). I needed to read some RFCs and discovered that the PDF versions use a font smaller and "thinner" (Courier 10?) than what I'm used to. I tried some options to modify the original plain text documents and discovered that modifying their fonts was not as easy as I thought. Finally I created a utility to convert RFCs to PDF allowing the user to change fonts and margins and I wanted to share it. There is also a utility to "bulk convert" a folder with RFCs in plain text.I have converted RFCs to PDFs with two free monospaced fonts: Liberation Mono and Ubuntu Mono, check the releases. Hope you find it useful!.