Uploading or checking multimedia content
GPN Stickers let you embed multimedia content to your postcards.
Visit and go to "Check Media" section.
Scan your QRcode or manually enter the serial number, select "Yes" if you want to attach a file, enter a valid email address and choose what to upload.
In order to check what the sender has attached to the postcard you received follow the steps above but instead of selecting "Yes" identify yourself as addressee by clicking on "No"