XnView Software

if it works with one file, it could be that a commandline with "for" works for all files:

for %i in (*.jpg) do nconvert -npcd 2 -size 256x256+0 -ctype grey -corder inter -out jpeg -o new_%i.jpg -wmfile "DVWM2.png" -wmflag bottom-left -ratio -rtype lanczos -rflag orient -resize 260 260 %i

look at the explantation
http://newsgroup.xnview.com/viewtopic.php?t=15383

Used nconvert 4.92, March 26 2008

could be, there is another error in nconvert

for /D %i in (*) do nconvert -multi -out tiff -o "%i.tif" %i\*.tif

this line should work at commandline
the quotation mark at last argument now lost

in general they should beware of white spaces, but why they don't ...

nconvert -xall -o test.tif dir3.tif

extracts all images of given multipage-tiff to

test-0.tif
....
test-7.tif

a.s.o.

I did a short test at commandline with nconvert and it worked

for /D %i in (*) do nconvert -multi -out tiff -o "%i.tif" "%i\*.tif"

in a batchfile it should written a bit different

for /D %%i in (*) do nconvert -multi -out tiff -o "%%i.tif" "%%i\*.tif"

Yeah,

if i want to cut an image, i move the mouse from outside the picture into it.* (for example: from right bottom corner) And so the first cropping area is defined.
A second mouse movement from the top left corner outside into the image defines the second cut.
And that would be all. Two steps ...

I have the wish, that a customizable startup view would work like other programs offer

% of windows --> could be a percentage of the fit options (see bottom of post), like let me say 95%
then the picture ist displayed in an dimension of 95% of fitting size

it makes working in cropping and editing ...