Hello. I am translating and editing comics from english to czech but it is not important. I want change english ptui to czech pfuj.

Here is a picture

How can i do it, please.

Is this image everything you have to work on? Or do you have it in another format, possibly with layers and the text, in which case you can do it easily.

If you only have this image you can simply draw over the letters. Make an object with faint blue color, blur it and place over the letters, then use the text tool to write whatever text you want and style it (bold, white fill, black stroke...)

You could possibly just add an object and place it over the letter T to make it look like it's F.

Here's an excellent guide that can help you learn Inkscape http://tavmjong.free.fr/INKSCAPE/MANUAL_v14Draft/html/

How can i style text like on the picture?

First you have to have a font installed on your computer that has a shape you like. You can search through free fonts if you don't like any you already have http://www.dafont.com/

Once you have the font you like, open Inkscape and write the text with the . Select your text object, open the Fill and Stroke dialog and set fill color to white, and stroke color to black. Adjust the stroke width if needed.

1. Find a font that resembles what you want and type you're text.
2. Convert text to path.
3. Path>break apart.
4. Now you'll have to select the P and the path that was created for the inside of the P (just click and drag over the P to select both) and do Path>Combine.
5. Maneuver the letters to the appropriate positions. In the example you give maneuver it so that the T and P are touching.
6. Select both T and P and Path>Union.
7. To get back to one object you can now select all the letters and do either Path>Combine or Object>Group. Or you could leave it as three separate paths/objects. Select all the text and set Stroke to black (I went with stroke thickiness of 10px) and Fill to white.

I didn't have the exact right font but I think it's close enough. I used Maiandra and after doing the final Path>Combine I did Path>Simplify x2 to get the looser look of your example. I then rotated it a bit to get a little bit of skew.

Can you upload font maiandra please?

No. It's a proprietary font that came with my Windows XP installation. You should be able to find a suitable font at dafont as linked above. It's a fantastic resource.

OK i will try to find him. Thanks for helping it was very good.

Actually, try this:
http://www.fontica.com/font/maiandra_gd