The electronic copy of the certificate is invalid. The best way is to indicate the certificate in person for one-time use. You can paste and print it in the middle of the certificate with PS or other drawing tools to prevent it from being copied or printed again.

Take the ID card as an example:

1. When processing credit cards:

You can write on the front of the copy of your ID card: "This is an application for XX bank credit card. Other uses are invalid, and copying again is invalid. Dating. Signature. "

2. When handling the real estate license:

You can write on the front of the copy of your ID card: "This is for the exclusive use of the property ownership certificate of XX Road. If it is used, it will be invalid, and then the copy will be invalid. Dating. Signature. "

3. When handling calling cards:

You can write on the front of the copy of your ID card: "This is the mobile phone number for purchasing 158 * * * * * * for the exclusive use of the mobile company. If it is used by others, it will be invalid to copy it again. Dating. Signature. "

4. When purchasing air tickets:

You can write on the front of the copy of your ID card: "This is to buy a ticket from Shenyang to Beijing on XX Airlines. It is invalid for him to use it, and it is invalid for him to copy it again. Dating. Signature. "

5. When applying for a job:

You can write on the front of the copy of your ID card: "This is the attachment of your resume. It is invalid to use it alone or use it for other purposes, and it is invalid to copy it again. Dating. Signature. "

6. When reserves are reserved for intermediaries:

You can write on the front of the copy of the ID card: "This piece is for the exclusive use of XX Road real estate registered by the intermediary, and it is invalid for other use, and it is invalid for copying again. Dating. Signature. "

7. At the request of the personnel department of this unit:

You can write on the front of the copy of your ID card: "This copy is for the company's exclusive use during my work in XX company, and other uses are invalid, and copying again is invalid. Dating. Signature. "

8. When purchasing a fund:

You can write on the front of the copy of your ID card: "This is for XX Bank to apply for XX fund deduction, and other uses are invalid, and copying again is invalid. Dating. Signature. "

9. Other considerations:

1), must use a blue ballpoint pen; The words should be handwritten, some strokes cross or contact with the words on the ID card to prevent being copied again, and the name stamp should be covered obliquely;

2), the text can be divided into three lines, the spacing between words is compact, and long horizontal lines must be drawn before and after, and spaces between words should be drawn with X to avoid adding other words;

3), indicate the scope of use on the copy, accurate to the name of the relevant department;

4), indicate the use time and duration, accurate to the day;

5) The harder the signature handwriting is to imitate, the better;

6), must be marked with the words "copy again is invalid".