Center-/middle-align text with PIL?

Question

How would I center-align (and middle-vertical-align) text when using PIL?

Answer 1

Use Draw.textsize method to calculate text size and re-calculate position accordingly.

Here is an example:

from PIL import Image, ImageDraw  W, H = (300,200) msg = "hello"  im = Image.new("RGBA",(W,H),"yellow") draw = ImageDraw.Draw(im) w, h = draw.textsize(msg) draw.text(((W-w)/2,(H-h)/2), msg, fill="black")  im.save("hello.png", "PNG") 

and the result:

If your fontsize is different, include the font like this:

myFont = ImageFont.truetype("my-font.ttf", 16) draw.textsize(msg, font=myFont) 

Answer 2

Here is some example code which uses textwrap to split a long line into pieces, and then uses the textsize method to compute the positions.

from PIL import Image, ImageDraw, ImageFont import textwrap  astr = '''The rain in Spain falls mainly on the plains.''' para = textwrap.wrap(astr, width=15)  MAX_W, MAX_H = 200, 200 im = Image.new('RGB', (MAX_W, MAX_H), (0, 0, 0, 0)) draw = ImageDraw.Draw(im) font = ImageFont.truetype(     '/usr/share/fonts/truetype/msttcorefonts/Arial.ttf', 18)  current_h, pad = 50, 10 for line in para:     w, h = draw.textsize(line, font=font)     draw.text(((MAX_W - w) / 2, current_h), line, font=font)     current_h += h + pad  im.save('test.png')