Originally Posted by Taesoo Kwon
Yes, I guess so. PDFRead supports command line mode, and paperCrop uses LUA script for generating output. So one who are familiar with LUA script can modify the .LUA files in the scripts folder such that the output images from PaperCrop are automatically converted to e-book files using PDFRead. But at the moment, I don't want to do the work by myself due to my lazyness.
I can provide the codes of paperCrop to anyone who are interested.
already supports converting two-column layouts using the layout modes:
'landscape-2col' (with four quadrants/pages);
'portrait-2col' (with four quadrants/pages);
However, PDFRead is not too "smart" in how it determines where the columns start/end; it just picks the midpoint of the page and splits it there! Of course, this will be wrong if the column widths (and side margins) are not equal.
I had looked into programming using LUA when I was porting/tweaking some PSP homebrew programs, so it would be easy to re-use your programming logic.
However, PDFRead is due for a major overhaul, so I will hold off doing this just now. I'll wait to see what ashkulz (original authour of PDFRead) does with any update to PDFRead and then go from there.
Nice effort though!