| Option |
Description |
| -adjoin |
join images into a single multi-image file |
| -annotate geometry text |
annotate the image with text |
| -border |
include image borders in the output image |
| -channel type |
apply option to select image channels |
| -colors value |
preferred number of colors in the image |
| -colorspace type |
set image colorspace |
| -comment string |
annotate image with comment |
| -compress type |
image compression type |
| -contrast |
enhance or reduce the image contrast |
| -crop geometry |
preferred size and location of the cropped image |
| -debug events |
import copious debugging information |
| -define format:option |
define one or more image format options |
| -delay value |
import the next image after pausing |
| -density geometry |
horizontal and vertical density of the image |
| -depth value |
image depth |
| -descend |
obtain image by descending window hierarchy |
| -display server |
get image or font from this X server |
| -dispose method |
layer disposal method |
| -dither |
apply Floyd/Steinberg error diffusion to image |
| -encoding type |
text encoding type |
| -endian type |
endianness (MSB or LSB) of the image |
| -filter type |
use this filter when resizing an image |
| -frame |
include window manager frame |
| -geometry geometry |
preferred size or location of the image |
| -gravity type |
horizontal and vertical text placement |
| -help |
print program options |
| -identify |
identify the format and characteristics of the image |
| -interlace type |
type of image interlacing scheme |
| -interpolate method |
pixel color interpolation method |
| -label name |
assign a label to an image |
| -limit type value |
pixel cache resource limit |
| -log format |
format of debugging information |
| -monitor |
monitor progress |
| -monochrome |
transform image to black and white |
| -negate |
replace every pixel with its complementary color |
| -page geometry |
size and location of an image canvas (setting) |
| -quality value |
JPEG/MIFF/PNG compression level |
| -quantize colorspace |
reduce image colors in this colorspace |
| -quiet |
suppress all warning messages |
| -quiet |
suppress all warning messages |
| -repage geometry |
size and location of an image canvas |
| -resize geometry |
resize the image |
| -rotate degrees |
apply Paeth rotation to the image |
| -sampling-factor geometry |
horizontal and vertical sampling factor |
| -scene value |
image scene number |
| -screen |
select image from root window |
| -seed value |
seed a new sequence of pseudo-random numbers |
| -set attribute value |
set an image attribute |
| -silent |
operate silently, i.e. don't ring any bells |
| -strip |
strip image of all profiles and comments |
| -transparent-color color |
transparent color |
| -trim |
trim image edges |
| -type type |
image type |
| -verbose |
print detailed information about the image |
| -version |
print version information |
| -virtual-pixel method |
access method for pixels outside the boundaries of the image |
| -window id |
select window with this id or name |