I have just created a website that can be used with the Adalo Web View component to view PDFs completely for free. You can use it, and if you find any errors, please let me know so I can improve it.
How to use: Add this URL in the Web View: https://linxn.net/?url=
Then, add the URL of the PDF uploaded in Adalo after ?url=, like this: https://linxn.net/?url=https://url-here.pdf
