195 lines
3.8 KiB
Plaintext
195 lines
3.8 KiB
Plaintext
.TH PAGE 1
|
|
.SH NAME
|
|
page \- view
|
|
FAX,
|
|
image, graphic, PostScript, PDF, and
|
|
typesetter output
|
|
files
|
|
.SH SYNOPSIS
|
|
.B page
|
|
[
|
|
.B -abirPRvVw
|
|
]
|
|
[
|
|
.B -p
|
|
.I ppi
|
|
]
|
|
[
|
|
.IR file ...
|
|
]
|
|
.SH DESCRIPTION
|
|
.I Page
|
|
is a general purpose document viewer.
|
|
It can be used to display the individual pages
|
|
of a
|
|
PostScript,
|
|
PDF,
|
|
or
|
|
.IR tex (1)
|
|
or
|
|
.IR troff (1)
|
|
device independent output
|
|
file.
|
|
.I Tex
|
|
or
|
|
.I troff
|
|
output is simply converted to PostScript in order to be viewed.
|
|
It can also be used to view any number of
|
|
graphics files
|
|
(such as a
|
|
FAX
|
|
page,
|
|
a Plan 9
|
|
.IR image (6)
|
|
file, an Inferno bitmap file, or other common format).
|
|
.I Page
|
|
displays these
|
|
in sequence.
|
|
In the absence of named files,
|
|
.I page
|
|
reads one from standard input.
|
|
.PP
|
|
By default,
|
|
.I page
|
|
runs in the window in which it is started
|
|
and leaves the window unchanged.
|
|
The
|
|
.B -R
|
|
option causes
|
|
.I page
|
|
to grow the window if necessary
|
|
to display the page being viewed.
|
|
The
|
|
.B -w
|
|
option causes
|
|
.I page
|
|
to create a new window for itself.
|
|
The newly created window will grow as under the
|
|
.B -R
|
|
option.
|
|
If being used to display
|
|
multipage documents,
|
|
only one file may be specified on the command line.
|
|
.PP
|
|
The
|
|
.B -p
|
|
option sets the resolution for PostScript and PDF
|
|
files, in pixels per inch.
|
|
The default is 100 ppi.
|
|
The
|
|
.B -r
|
|
option reverses the order in which pages are displayed.
|
|
.PP
|
|
When viewing images with
|
|
.IR page ,
|
|
it listens to the
|
|
.B image
|
|
plumbing channel
|
|
(see
|
|
.IR plumber (4))
|
|
for more images to display.
|
|
The
|
|
.B -i
|
|
option causes
|
|
.I page
|
|
to not load any graphics files nor to read
|
|
from standard input but rather to listen
|
|
for ones to load from the plumbing channel.
|
|
.PP
|
|
Pressing and holding button 1 permits panning about the page.
|
|
.PP
|
|
Button 2 raises a menu of operations on the current image or the
|
|
entire set. The image transformations are non-destructive and are
|
|
valid only for the currently displayed image. They are lost as soon
|
|
as another image is displayed.
|
|
The button 2 menu operations are:
|
|
.TF Resize
|
|
.TP
|
|
.B Orig size
|
|
Restores the image to the original. All modifications are lost.
|
|
.TP
|
|
.B Zoom
|
|
controls magnification.
|
|
.TP
|
|
.B Fit
|
|
Resizes the image so that it fits in the current window.
|
|
.TP
|
|
.B Rotate 90
|
|
Rotates the image 90 degrees clockwise
|
|
.TP
|
|
.B Upside down
|
|
Toggles whether images are displayed upside-down.
|
|
.TP
|
|
.B Next
|
|
Displays the next page.
|
|
.TP
|
|
.B Prev
|
|
Displays the previous page.
|
|
.TP
|
|
.B Zerox
|
|
Displays the current image in a new page window.
|
|
Useful for selecting important pages from large documents.
|
|
.TP
|
|
.B Write
|
|
Asks for a filename and writes the current image as
|
|
Plan 9 bitmap.
|
|
.TP
|
|
.B Ext
|
|
Shows the current image using external
|
|
.IR jpg (1)
|
|
program in a separate window. This is mostly usefull for
|
|
animated gifs.
|
|
.PD
|
|
.PP
|
|
Button 3 raises a menu of the
|
|
pages
|
|
to be selected for viewing in any order.
|
|
.PP
|
|
Typing a
|
|
.B q
|
|
or
|
|
control-D exits the program.
|
|
.PP
|
|
To go to a specific page, one can type its number followed by enter.
|
|
Typing left arrow, backspace, or minus displays the previous page.
|
|
Typing right arrow, space, or enter displays the next page.
|
|
The up and down arrow pan up and down one half screen height,
|
|
changing pages when panning off the top or bottom of the page.
|
|
.PP
|
|
.I Page
|
|
calls
|
|
.IR gs (1)
|
|
to draw each page of PostScript
|
|
and
|
|
PDF
|
|
.IR files .
|
|
It also calls a variety of conversion programs, such as those described in
|
|
.IR jpg (1),
|
|
to convert the various raster graphics formats
|
|
into Inferno bitmap files.
|
|
Pages are converted ``on the fly,'' as needed.
|
|
.SH EXAMPLES
|
|
.TP
|
|
.L
|
|
page /sys/src/cmd/gs/examples/tiger.eps
|
|
Display a color PostScript file.
|
|
.TP
|
|
.L
|
|
page /usr/inferno/icons/*.bit
|
|
Browse the Inferno bitmap library.
|
|
.TP
|
|
.L
|
|
man -t page | page -w
|
|
Preview this manual in a new window.
|
|
.SH "SEE ALSO
|
|
.IR gs (1),
|
|
.IR jpg (1),
|
|
.IR tex (1),
|
|
.IR troff (1)
|
|
.SH SOURCE
|
|
.B /sys/src/cmd/page.c
|
|
.SH BUGS
|
|
The interface to the plumber is unsatisfactory. In particular,
|
|
document references cannot be sent
|
|
via plumbing messages.
|