This is not necessary. There are no clear rules. Generally speaking, as long as you have contact information, employers can theoretically contact you. But in order to improve your interview chances, a resume needs a lot of effort. First of all, you should have basic information, such as education, training and work experience. If you want to be better, you'd better have a cover letter, talk about some work-related things and make a targeted resume, which will get twice the result with half the effort.

You can upload some attachments, including photos of your own works, as an aid, unless you are interviewing for an image-oriented position. Not necessarily, but the following points should be observed. First, you are attractive in person, and you can certainly attach photos. Second, photos should reflect their true colors, and they should not deliberately beautify themselves with star photos. Third, to avoid the big difference between the photo and my image, it is generally a recent bareheaded photo of 1-6 months.

Fourth, don't choose the most beautiful one, which will set the expectation too high.

The photos attached to the resume are not necessarily ID photos, but the resume photos should follow the following standards: There should not be too many resume photos, and it is best to take one or two inch color professional recent photos. Men should wear a white shirt, a monochrome tie and a black suit jacket; Women can wear white or light-colored collared tops and monochrome suits or coats, giving a good first impression. Avoid photos that are too different from your own image, generally 1-6 months recent bareheaded photos. The photos in your resume are usually printed in black and white; Get some id photos; When using resumes, such as going to job fairs or other places, you can use normal resumes, especially photos of companies or positions to be posted on your resume, so as not to waste photos; It is not recommended to play with colors, which is a waste of money and the effect is average. According to the job attributes, it is necessary to distinguish whether publishing is needed. For example, employees of professional units such as models, singers and dancers are generally required to be released; The general technical work pays more attention to personal talent, professional skills do not need photos, and employers do not need them.