1157 Portable Bitmap Image - Binary This is an outline record only, and requires further details, research or authentication to provide information that will enable users to further understand the format and to assess digital preservation risks associated with it if appropriate. If you are able to help by supplying any additional information concerning this entry, please return to the main PRONOM page and select ‘Add an Entry’. Binary 165 Georgia Tech Research Institute / Georgia Tech Research Institute 16 Mar 2012 16 Mar 2012 fmt/409 PUID pbmb File extension pnm File extension 584 Portable Bitmap Image - Binary with comment “P4” followed by possible comment, followed by width, height. 1 Absolute from BOF 0 5034(20|0D|0A){0-2}23{0-70}0A(30|31|32|33|34|35|36|37|38|39|20|0A|0D)(30|31|32|33|34|35|36|37|38|39|20|0A|0D)(30|31|32|33|34|35|36|37|38|39|20|0A|0D)(30|31|32|33|34|35|36|37|38|39|20|0A|0D) 624 Portable Bitmap Image - Binary without comment “P4” followed by width, height. 1 Absolute from BOF 0 5034(20|0D|0A)(30|31|32|33|34|35|36|37|38|39|20|0A|0D)(30|31|32|33|34|35|36|37|38|39|20|0A|0D)(30|31|32|33|34|35|36|37|38|39|20|0A|0D)(30|31|32|33|34|35|36|37|38|39|20|0A|0D)