Hello there everybody.
My question should be rather simple for "insiders" (or I hope so at least), so here is the matter: as far as I know and understand, 7zip is currently the best lossless compression software for everyday purposes as it -generally speaking- grants the best possible compression ratio nowadays... or is it?
Ok now, assuming my premise is correct, my most specific question is this: does 7-zip always grants the best lossless compressing ratio or in specific circumstances (i.e. compressing images rather than office documents, etc.) there are "better aimed solutions"?
To be more precise, I'm interested in compressing what I have to send by email the more often, that is:
- PDF documents
- images (90% of which JPEGs)
- although rarely, binaries (executables, etc.)
Do you know any software that grants better compression ratio than 7-zip for those specific cases?
I'd greatly appreciate advices based upon statistical or technical information (i.e. compression ratio comparison, etc.). Thank you in advance.
P.S. I know that JPG is already a compressed format so it is difficult to get it to shrink more and, moreover, often PDF documents are indeed JPEGs... Clearly, I'm not so wishful of having to use many software if it is not worth the effort and, in that case, I'll go on using only 7-zip for everything.