Thank you for bringing this to our attention! While we are sorry to hear you’re seeing this change of quality for your PDF, we would like to collect a few more details. For instance, are you reaching out about the PDF itself or the image version our Library auto converts? Are you uploading this document under the Library of your account, or the images tab when working in your email? Having these details and the name of this PDF is helpful information as we continue to look into this.