Inserted texts are too small to read in a large picture file

[lakeforestshu]

I tried to add date information to a picture.
The size of the picture file is large (3200x2400 pixel). Maybe due to this, the inserted texts are too small to read, even with the largest available font size of 15.

[Sam_Zen]

Hmm. You're using quite an odd font here. Most fonts have a max size of 72..

[Mij]

Truetype fonts can be scaled to any size you like. If the one you want is not in the list just type it directly into the size box at the top.