    man(1)                         jfbview man page                         man(1)

    NAME
           jfbview - PDF and image viewer for the Linux framebuffer.

    SYNOPSIS
           jfbview [OPTIONS] FILE

    DESCRIPTION
           jfbview is a PDF and image viewer for the Linux framebuffer.

    OPTIONS
           --help, -h
                  Shows help message.

           --fb=/path/to/dev
                  Specifies the path to the output framebuffer device. The default
                  is /dev/fb0.

           --password=xxx, -P xxx
                  Unlock PDF document with the given password.

           --page=n, -p n
                  Go to page n on start up.

           --zoom=n, -z n
                  Set initial zoom to be n percent. For example, "-z 75" sets zoom
                  to 75%.

           --zoom_to_fit
                  Start in zoom-to-fit mode.

           --zoom_to_width
                  Start in zoom-to-width mode. This is the default.

           --rotation=n, -r n
                  Set initial rotation to n degrees clockwise.

           --color_mode=invert, -c invert
                  Start in inverted color mode.

           --color_mode=sepia, -c sepia
                  Start in sepia color mode.

           --cache_size=n
                  Selects  the  number  of pages to cache. jfbview has a in-memory
                  cache of pages rendered at a particular zoom and  rotation  set‐
                  ting.  However,  you  may  wish to adjust the cache size down if
                  this cache is consuming too much memory, or you may wish to  ad‐
                  just the cache size up for increased performance. If you have an
                  older machine with limited RAM you may want to set it  close  to
                  zero.

    KEY BINDINGS - MAIN VIEW
           jfbview has a set of vi-like key bindings and many commands can be pre‐
           fixed with a number. These are shown with a [n] prefix below.

           q      Quit.

           Tab    Open OUTLINE VIEW (table of contents, i.e., TOC; see below).

           /      Open SEARCH VIEW (see below).

           [n]arrow keys, [n]h/l/k/j
                  Move left/right/up/down.

           [n]Space/^F
                  Move n screens down. Default is 1.

           [n]^B  Move n screens up. Default is 1.

           [n]PageDown/PageUp
                  Go down / up n pages. Default is 1.

           [n]=/+ Zoom in n times. Default is 1.

           [n]-   Zoom out n times. Default is 1.

           s      Zoom to screen width.

           a      Zoom to fit.

           HOME/END
                  Go to first / last page in document.

           [n]G/g Go to page n. Default for G is last page; default for g is first
                  page.

           [n]m   Save current position, zoom and rotation in document in bookmark
                  n. The default is 0.

           [n]`   Restore saved position, zoom and rotation in bookmark n. The de‐
                  fault is 0.

           [n]r   Set rotation to n degrees. Default is 0.

           [n]>/. Rotate 90 degrees clockwise n times. Default is 1.

           [n]</, Rotate 90 degrees counter-clockwise n times. Default is 1.

           [n]z   Set zoom to n percent.

           e      Reload current file from disk.

           I      Toggle inverted color mode.

           S      Toggle sepia color mode.

    KEY BINDINGS - OUTLINE VIEW
           The outline view is toggled by the Tab key.

           Tab/q/Esc
                  Toggle outline view.

           j/Down, k/Up
                  Move down or up.

           PageDown/PageUp
                  Go down / up one page.

           Enter/g
                  Go to selected item.

           Space  Fold/unfold selected item.

           zR     Unfold all.

           zM     Fold all.

    KEY BINDINGS - SEARCH VIEW - SEARCH TEXT
           Esc    Toggle search view.

           Enter  Start search.

           Tab/Down/PageDown
                  Go to search results.

    KEY BINDINGS - SEARCH VIEW - SEARCH RESULTS
           q/Esc  Toggle search view.

           Space/Enter/g
                  Go to selected item.

           j/Down, k/Up
                  Move down or up.

           PageDown/PageUp
                  Go down / up one page.

           Tab//  Go to search text.

    BUGS
           Please  submit  bugs  reports  and  any  suggestions for improvement at
           https://github.com/jichu4n/jfbview/issues.

    AUTHOR
           Chuan Ji (chuan@jichu4n.com)

    2020-05-25                        25 May 2020                           man(1)