Convert pbm images to postscript with g3 fax compression
pbmtopsg3 [--title=title] [--dpi=dpi] [filespec]
Converts the PBM images in the input PBM file to pages in a Postscript file encoded with G3 fax compression.
If you don't specify filespec, the input is from Standard Input.
Remember that you can create a multi-image PBM file simply by concatenating single-image PBM files, so if each page is in a different file, you might do:
cat faxpage* | pbmtopsg3 >fax.ps
-title
The Postscript title value. Default is no title.
-dpi
The resolution of the Postscript output. Default is 72 dpi.
pnmtops(1), pstopnm(1), gs(1), pstopnm(1), pbmtolps(1), pbmtoepsi(1), pbmtog3(1), g3topbm(1), pbm(5)