-5

this is in the apache POI export Excel document ,I Don't know this sentence mean "This is in 1/20th of a point."; who can help me! I know in this sentence "1/20th" th is length unit,but I Don't know convert this unit;

Thilo
  • 257,207
  • 101
  • 511
  • 656

1 Answers1

5

To quote another answer:

In applications, 1pt is equal to exactly 1/72th of an inch; in traditional print technically 72pt is 0.996264 inches, although I think you'll be forgiven for rounding it up!

How many pixels = 1pt depends on the resolution of your image. If your image is 72ppi (pixels per inch), then one point will equal exactly one pixel.

Community
  • 1
  • 1
Thilo
  • 257,207
  • 101
  • 511
  • 656
  • thank you answered this question !but i don't know this sentence "th" and px how to convert? – YangHongChang Jul 21 '12 at 07:58
  • 1/20th means "one twentieth", i.e, 5%. So 1/20th point is 1/1440th inch. At 72 pixels-per-inch that means that 20 of those units equal one pixel. – Thilo Jul 22 '12 at 00:16