Regarding the visa, must the employment certificate be stamped with the official seal of the unit? Is the department seal all right?

1, the official seal is rarely used abroad, and in most cases it is signed by the relevant person in charge. The official seal is mainly used in China, so when applying for a visa, it is best to stamp the official seal of the company on the employment certificate.

2. If it is handled by yourself, the employment certificate can also be stamped with the department seal, because the employment certificate is not a necessary proof material, so it can be stamped anywhere. However, there must be the signature (handwriting) of the leader at the same level. In western countries, signature is more important, everyone is honest, and the authenticity of the signature will only be verified if there is a problem. And most visa officers don't look at it when they apply for visas.

3. If the travel agency assists in visa application, it shall affix the official seal of the company or the seal of the company office, and require to provide a copy of the legal person code and business license (the company's red seal is also required). This is not the requirement of the country you are going to, but the requirement of the travel agency to indirectly prove that you will come back (the so-called overseas travel deposit is also required by the travel agency). If tourists can't return home with the group (so-called leaving the group), the travel agency needs to bear joint and several responsibilities, which will affect the review of the travel agency's next trip abroad.

Visa is the annotation and seal of the sovereign organ of a country on the passport or other travel documents held by its own or foreign citizens to show that they are allowed to enter or leave its own territory or pass through it. It can also be said that it is an endorsement certificate issued to them.

Generally speaking, a visa is a document issued by a country's entry-exit administration (such as immigration bureau or its embassy or consulate abroad) to approve the entry of foreign citizens.

References:

Baidu encyclopedia-visa