Formulaire : police qui se décale en haut du bloc dans une partie non visible

Assurez vous que l'option "Multiligne" ne soit pas cochée (Propriétés du champ : Options).

Hi @Adrien5DC5 

Hope you are doing well. Sorry for the delay.

While creating the pdf form, you check the form field properties and correct the font size. 

Also, you see the upper right corner; there's an option for alignment. Try aligning the text fields by selecting multiple at once. 

For more details please refer to this and follow the steps suggested here:

https://helpx.adobe.com/acrobat/using/pdf-form-field-basics.html 

Thanks,

Akanchha