[gentoo-user] Re: [OT] Saving an image as black and white

On 2021-03-01, Wols Lists wrote: > On 01/03/21 12:11, (Nuno Silva) wrote: >> On 2021-03-01, Wols Lists wrote: >> >>> I've got a bunch of scans, let's assume they're text documents. And >>> they're rather big ... I want to email them. >>> >>> How on earth do I convert them to TRUE b&w documents? A

[gentoo-user] Re: [OT] Saving an image as black and white

On 2021-03-01, Wols Lists wrote: > I've got a bunch of scans, let's assume they're text documents. And > they're rather big ... I want to email them. > > How on earth do I convert them to TRUE b&w documents? At the moment they > are jpegs that weigh in at 3MB, and I guess they're using about 5 byt

Re: [gentoo-user] Re: [OT] Saving an image as black and white

save/convert to pdf - use gs from ghostscrpit to convert them (I use ebook for the target) which gives 10-20x reduction in size with only a small reduction in quality - perfect for emailing. I dont have the actual command string but I originally found the suggestion via google. BillK On 1/3/21

Re: [gentoo-user] Re: [OT] Saving an image as black and white

On 01/03/21 12:11, (Nuno Silva) wrote: > On 2021-03-01, Wols Lists wrote: > >> I've got a bunch of scans, let's assume they're text documents. And >> they're rather big ... I want to email them. >> >> How on earth do I convert them to TRUE b&w documents? At the moment they >> are jpegs that weigh