I've made a pdf in Acrobat with a hyperlink that works great on desktop but not on an Iphone, how do I fix this?

I have a lead magnet pdf made in Acrobat with several hyperlinks. The pdf is sent through Flodesk, with a link to the pdf, but when opened on an Iphone the hyperlinks says “Safari can’t open the page since the address is invalid”. Is there another way to make the hyperlinks to make sure they work on all devices?