I am uploading my first product, it is a PDF file Version 1.5, but before it is fully uploaded the error message: "The request signature we calculated does not match the signature you provided. Check your key and signing method." occurs.
It cannot be the file's Name, it persists of small letters and eds with .PDF
I have enough space in my account to save it. I created it via PDF24 and did not sign it or use any key either. I tried to upload it in Chrome. What could be the reason it won't upload?
I'm thankful for any advice