moving subtitle text up in *.srt file format

Many players support ASS tags in .srt files. Below is an example using ASS positioning tags which work in both VLC and SMplayer in Linux, and probably in many other players and other OSes.

Note that the accepted answer suggests an older version of the SSA format, using {\aX} instead of {\anX}. The numbers used in the older format are also different, and that format is considered deprecated. The newer format uses the numpad layout for the numbers. While SMplayer correctly displays both formats, VLC only accepts the current {\anX} format.

1
00:00:01,000 --> 00:00:04,000
{\an7} Top-left: an7

2
00:00:05,000 --> 00:00:08,000
{\an8}Top-center: an8

3
00:00:09,000 --> 00:00:12,000
{\an9}Top-right: an9

4
00:00:13,000 --> 00:00:16,000
{\an4}Middle-left: an4

5
00:00:17,000 --> 00:00:20,000
{\an5}Middle-center: an5

6
00:00:21,000 --> 00:00:24,000
{\an6}Middle-right: an6

7
00:00:25,000 --> 00:00:28,000
{\an1}Bottom-left: an1

8
00:00:29,000 --> 00:00:32,000
{\an2}Bottom-Center an2

9
00:00:33,000 --> 00:00:36,000
{\an3}Bottom-right: an3

11
00:00:37,000 --> 00:00:45,000
Back to default

As far as I know there is no such setting in the .srt format (this is confirmed by this page), that will depend on the program you use to view your videos. For example, in the settings of vlc you have "Force subtitle position":

You must write {\an} before your text.

{\a10} for center of screen, {\a6} for center above, {\a5} for left above, {\a9} for left center, etc...

(if it doesn't work, copy my writing to your subtitle)