2 answers
the short answer is: it depends on the country and field, but in most cases in brazil you don't need to put a photo, and many companies actually prefer that you don't.
in the brazilian job market, the standard is to send a resume WITHOUT a photo. recruiters here like to evaluate your qualifications first without bias, you know? putting a photo can open the door to discrimination (age, appearance, whatever) and pretty much no job posting is going to specifically ask for it. if the company wants a photo, they'll ask for it later, when they call you for an interview. so it's safe to leave it out.
now, if you're sending your resume abroad, it varies a lot. in some european countries putting a photo is common, in others it's rare or even seen as weird. but since you're asking in portuguese it seems like it's for the market here anyway, so just send it without a photo. focus on making your resume well-structured, with clear experience and skills, because that's what really makes a difference.
It really depends on the field and the company, but generally speaking, photos on resumes are becoming less and less common around here. A lot of recruiters actually prefer not to receive them, precisely to avoid unconscious bias in the selection process. If you're sending your resume for specific job openings, the best thing is to follow what the posting asks for; if it doesn't say anything, you can definitely send it without a photo. What really matters is that the content - experience, education, skills - is clear and relevant to the position.
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