Rationale behind exporting to CCITT format
I'm a newbie in Image format and compression. My understanding is that CCITT (a compression format if I'm not mistaken) can only be visualized (or is best visualized) as a TIFF format.
In any case, my point is: using the -all option really makes sense when processing a big amount of heterogeneous PDFs.
But then you get a lot of these .ccitt + .params and I'm at a loss at what to do with them.
My manual tests indicate that transforming ccitt encoded pics in PNG produces the smallest file (is it a lossless conversion??)
Unfortunately there's no way to specifically tell pdfimages "convert ccitt encoded images to PNG format".
It's either all or nothing. And it's impossible to script something that would do it page by page because a page itself may contains multiple images encoded in different formats.
I'm very happy with the -all option but why produce a ccitt format? What is it useful for ? Why not produce an image in a common format (TIF would be the one if I'm not mistaken).