Using ImageMagick, you can render a PBM file into some other format, for example PNG:
convert SUTD.pbm -scale 4000% -transparent white SUTD.png
P1
39 9
1 1 1 1 1 1 1 1 1 0 1 0 1 0 1 0 1 0 1 0 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1
1 0 0 0 0 0 0 0 0 0 1 0 1 0 1 0 1 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1 0 1 1 1 1 1 1 1 0 1 0 1 0 1 0 1 0 1 0 1 1 1 0 1 0 1 1 1 0 1 1 1 1 1 1 1 0 1
1 0 0 0 0 0 0 0 0 0 1 0 1 0 1 0 1 0 1 0 0 0 1 0 1 0 1 0 0 0 0 0 0 0 0 0 1 0 1
1 1 1 1 1 1 1 1 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 1 1 1 1 0 1 0 1
0 0 0 0 0 0 0 0 1 0 1 0 1 0 0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 0 0 0 0 0 0 1 0 1
1 1 1 1 1 1 1 0 1 0 1 0 1 1 1 1 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 1 1 1 1 1 1 0 1
0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 1 0 1 0 1 0 1 0 1 0 1 0 0 0 0 0 0 0 0 0 1
1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 0 1 0 1 0 1 0 1 0 1 0 1 1 1 1 1 1 1 1 1
P1
19 19
1 1 1 1 1 1 1 1 1 0 1 0 1 0 1 0 1 0 1
1 0 0 0 0 0 0 0 0 0 1 0 1 0 1 0 1 0 1
1 0 1 1 1 1 1 1 1 0 1 0 1 0 1 0 1 0 1
1 0 0 0 0 0 0 0 0 0 1 0 1 0 1 0 1 0 1
1 1 1 1 1 1 1 1 1 0 1 0 1 0 1 0 1 0 1
0 0 0 0 0 0 0 0 1 0 1 0 1 0 0 0 1 0 1
1 1 1 1 1 1 1 0 1 0 1 0 1 1 1 1 1 0 1
0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 1
1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1
0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1
1 1 1 0 1 0 1 1 1 0 1 1 1 1 1 1 1 0 1
0 0 1 0 1 0 1 0 0 0 0 0 0 0 0 0 1 0 1
1 0 1 0 1 0 1 0 1 0 1 1 1 1 1 0 1 0 1
1 0 1 0 1 0 1 0 1 0 0 0 0 0 0 0 1 0 1
1 0 1 0 1 0 1 0 1 0 1 1 1 1 1 1 1 0 1
1 0 1 0 1 0 1 0 1 0 0 0 0 0 0 0 0 0 1
1 0 1 0 1 0 1 0 1 0 1 1 1 1 1 1 1 1 1