If you receive an error message when uploading a file, most probably this is due because of a corrupt file. Please, try the following to fix it:
- Export the PDF file again: open it in a text editor software and save it again as a .pdf file).
- Avoid spaces, symbols or special characters on the file's name: keep it short and simple if possible.
- Sometimes the file is just corrupted and you need to fix it. This tool will help you: PDFAid.
- Compress the file if it's over 10Mb on size. You can use ILovePDF for this.
If you keep getting the error message, please contact us. Remember sending us the file and a screenshot so that we can help you in a quicker way.