Which is the best Portable Standard Image processor that can be used? [closed]

Which is the best Portable Standard Image processor that can be used?
[closed]

References

Reference NO 1

http://portableapps.com/apps/graphics_pictures/gimp_portable

Reference NO 2

http://www.pcworld.com/article/2015241/how-to-buy-the-best-portable-hard-drive.html

Reference NO 3

http://www.pcworld.com/article/2018594/how-to-buy-the-best-laptop-in-the-age-of-windows-8.html

Reference NO 4

http://blog.superuser.com/2013/05/30/what-laptop-should-i-buy-for-college-2013-edition/

Reference NO 5

http://en.wikipedia.org/wiki/Portable_Document_Format

Reference NO 6

http://www.amazon.com/Anker-Dual-Port-Lightning-Thunderbolt-Incredible/dp/B009USAJCC

Reference NO 7

http://www.faststone.org/FSViewerDetail.htm

Reference NO 8

http://store.sony.com/c/VAIO-Tap-20-Touchscreen-Computers/en/c/S_J2_SERIES_PAGE