Ambertape,
It doesn't look like the author is still checking this thread. AFAIK, the version posted in the first post of the thread is the only version that exists. You can use either my or gdsense's GUI with it.
If the PDF started off as a scan, there'll be no way to change the font size. This program does not convert images to text. You'll need an OCR program to do that. Whether or not soPDF will work well enough to make it readable on your screen depends a lot on the dimensions and make-up of the magazine. Personally, I tend to have better luck with
PDFLRF for scanned PDFs. If the magazine organizes things into columns, you might also try
PaperCrop.