This error means that your computer's security settings blocked the file. Learn more about blocked downloads. On Windows: Windows Attachment Manager could have removed the file you tried to download. To check which files you can download or why your file was blocked, check your Windows internet security settings.
Source : https://support.google.com/chrome/answer/2898334?hl=en
To change these settings in the App Store app on your Mac, choose App Store > Settings. Check for downloads and install updates automatically. Automatically download apps that you purchased from the App Store on other Mac computers and devices (supported iOS, iPadOS, and tvOS apps only).
Source : https://support.apple.com/guide/app-store/change-app-store-settings-mchlp2257/mac
DownloadingOpen with will download the file and load it immediately in the specified program.Save File will download it and save it to your hard drive.
Source : https://edu.gcfglobal.org/en/basic-computer-skills/downloading-and-uploading/1/
Acrobat Reader is a free, stand-alone application that you can use to open, view, sign, print, annotate, search, and share PDF files.
Source : https://www.adobe.com/acrobat/pdf-reader.html
From File Explorer, double-click a folder to open it. You can then see all of the files stored in that folder.
Source : https://edu.gcfglobal.org/en/windowsbasics/working-with-files/1/
To do this, click the Insert" tab on the ribbon bar
Source : https://smallbusiness.chron.com/display-pdf-email-47272.html