2. IT FLATTENS SECURITY MARKS/SEAL
Some certificates contains prints, security seals, marks or stamps; when laminated, such certificates or documents is totally flattened out. Some organization, foreign institutes are so serious about these seals, flatten documents may not be easily verifiable or approved.
3. DUPLICATES GOES WRONG
In cases where you will have to duplicate certificates through photocopier, laminated certificates may/may not produces the best effect due to its reflective polythene texture. Distorted lines, text and colours may as well be created when photocopied.
Now that you know how much damage you can do to your certificate when laminated, stay away from laminating legal documents cause lamination renders it invalid/altered in some important organization.