term% cat index.txt PAGE(1) General Commands Manual PAGE(1)
NAME
page - view FAX, image, graphic, PostScript, PDF, and typesetter output
files
SYNOPSIS
page [ -iRw ] [ -p ppi ] [ -j addr ] [ file... ]
DESCRIPTION
Page is a general purpose document viewer. It can be used to display
the individual pages of a PostScript, PDF, or tex(1) or troff(1) device
independent output file. Tex or troff output is simply converted to
PostScript in order to be viewed. It can also be used to view any num‐
ber of graphics files (such as a FAX page, a Plan 9 image(6) file, an
Inferno bitmap file, or other common format). Page displays these in
sequence. In the absence of named files, page reads one from standard
input.
By default, page runs in the window in which it is started and leaves
the window unchanged. The -R option causes page to grow the window if
necessary to display the page being viewed. The -w option causes page
to create a new window for itself. The newly created window will grow
as under the -R option.
The -p option sets the resolution for PostScript and PDF files, in pix‐
els per inch. The default is 100 ppi.
When viewing images with page, it listens to the image plumbing channel
(see plumber(4)) for more images to display. The -i option causes 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.
The -j option with a page address addr jumps to the specified page on
startup.
Pressing and holding button 1 permits panning about the page.
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:
Orig size
Restores the image to the original. All modifications are lost.
Zoom controls magnification.
Fit Resizes the image so that it fits in the current window.
Rotate 90
Rotates the image 90 degrees clockwise
Upside down
Toggles whether images are displayed upside-down.
Next Displays the next page.
Prev Displays the previous page.
Snarf Writes the current page address to the snarf buffer.
Zerox Displays the current image in a new page window. Useful for se‐
lecting important pages from large documents.
Write Asks for a filename and writes the current image as Plan 9
bitmap.
Ext Shows the current image using external jpg(1) program in a sepa‐
rate window. This is mostly useful for animated gifs.
Button 3 raises a menu of the pages to be selected for viewing in any
order.
Typing a q or control-D exits the program.
To go to a specific page, one can type its number followed by enter.
Typing left arrow or backspace 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 pan‐
ning off the top or bottom of the page.
Page calls gs(1) to draw each page of PostScript and PDF files. It
also calls a variety of conversion programs, such as those described in
jpg(1), to convert the various raster graphics formats into Inferno
bitmap files. Pages are converted ‘‘on the fly,'' as needed.
EXAMPLES
page /sys/src/cmd/gs/examples/tiger.eps
Display a color PostScript file.
page /usr/inferno/icons/*.bit
Browse the Inferno bitmap library.
page -j /sys/doc/troff.pdf!7 /sys/doc/troff.pdf
Jump to page 7 in the troff manual.
man -t page | page -w
Preview this manual in a new window.
SEE ALSO
gs(1), jpg(1), tex(1), troff(1)
SOURCE
/sys/src/cmd/page.c
BUGS
The interface to the plumber is experimental.
HISTORY
Page first appeared in Plan 9 from Bell Labs. It was rewritten from
scratch for 9front (September, 2011).
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