When you are uploading a file, our system will automatically detect its size and suggest the closest format. If an error is detected after upload, you will be notified with an error message and asked to fix and re-upload the file. Read more...
Tip: We recommend using the blank templates available in our Adobe plugin to design your artwork.
If you are still experiencing issues, please contact us and send over the original file in PDF or, even better, the full InDesign package to facilitate the investigation.