On 28/02/2019 15.10, Marco Calistri wrote:
2 - Why XSane-Scanner Tool produces so large PDF
files, also if we set
low resolution at 150 DPI?
What is the exact name of the program?
I see "xsane", but not "XSane-Scanner". The size of the PDF will
on the resolution requested. For example, I scan an A4 page at 300 dpi
and I get a 3.6 MiB PDF file, which is reasonable. Repeating with PNG
the size is 3,5MiB.
You can go to Preferences menu and you get a dialog. There, on filetype
tab you can select some default options for each file type, like
compressing PDF or not, or how much to compress JPG and PNG.
I found a script
the Web which uses ghostscript which reduce a 15.2Mb Xsane PDF to just
1.4 Mb in size, so IMHO XSane developers should think to include a more
efficient compression routine to avoid the scanned PDF being created
with a so very big size.
Thanks and regards,
I prefer to generate PNG, and then convert to DJVU with a script.
Cheers / Saludos,
Carlos E. R.
(from 15.0 x86_64 at Telcontar)